What types of interfaces are there for mobile hard disks (what are the interface types of mobile hard disks)
1. What types of interfaces are there for mobile hard disks?.
2. What types of mobile hard disk interfaces are there?
3. What type of mobile hard disk interface is it?
4. What types of interfaces do mobile hard disks have? What are their respective characteristics?
1. There are three main types of mobile hard disk interfaces that can be seen on the market: USB interface.
2. Mobile hard drives with this interface generally use MiniUSB interface on the disk body to reduce space occupation, and use standard USB interface when connected to the computer.
3.eSATA interface.
4. This interface is an external version of the SATA interface. It is superior to the absence of any bridge chip and is equivalent to a direct connection to the SATA port, so it is fast and has strong performance.
5. FireWire interface, which is the IEEE1394 interface.
6. This interface was first developed by Apple, so it is often seen in Apple’s computer products.
7. Newer products can already provide 800M bandwidth and have very good performance, but their market occupancy is small.
Question 1: If I want to buy a good mobile hard drive, what kind is good? Recommended model: (Since USB3.0 transfer speed is much faster than USB2.0, I do not recommend 2.0 products!)
Hitachi HGST: Hitachi 2.5-inch TouroMobile mobile hard drive 5400 to USB3.0500GB< /p>
Hitachi 2.5-inch TouroMobile mobile hard drive 5400 rpm USB3.0750GB
Hitachi 2.5-inch TouroMobile mobile hard drive 5400 rpm USB3.01TB
Hitachi 2.5-inch TouroMobilePro mobile hard drive 7200 rpm USB3.0500GB
(The models of the four products are: 0S034670S034680S034690S03108)
[Note: Hitachi’s 2.5-inch hard drive has two series, the PRO version is 7200 rpm, and the non-PRO version is 5400 rpm
The red box of the non-PRO version is packed with a USB3.0 interface and the box is marked with the FASTUSB3.0 logo]
Western Digital: Western Digital Elements Portable SE series 2.5-inch USB3.0 Mobile hard drive 500GB
Western Digital ElementsPortableSE series 2.5-inch USB3.0 mobile hard drive 1TB
Western Digital 2012 latest MyPassportUSB3.0 500GB ultra-portable mobile hard drive
Western Digital 2012 latest MyPassportUSB3.01TB ultra-portable mobile hard drive
Western Digital 2012 latest MyPassportUSB3.02TB ultra-portable mobile hard drive
Western Digital MyPassportEssential series USB3.0500GB mobile hard drive
< p>Western Digital MyPassportEssentialSE series USB3.0500GB mobile hard drive(ElementsPortableSE series product models are: WDBPCK5000ABKWDBPCK0010BBK)
[Note: The Mypassport series currently has two new products in 2012 All are matte surfaces. Early products are all glossy surfaces
Elements has the best price/performance ratio, Mypassport is more high-end, the second one has multiple colors, the first one is not encrypted]
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Give you some suggestions: [Note: The above recommended models are all original mobile hard drives made by domestic brands and will not be discussed here]
[Note: Due to the acquisition, Hitachi has changed its name to HGST. All recommended models are USB3.0 versions]
For those above 1TB, I recommend assembling a large-capacity desktop hard drive and a mobile one. A hard drive box is enough
In terms of purchasing mobile hard drive boxes: For better mobile hard drive boxes, you can look at Biaowang or Yuangu (some with encryption)
If you want to assemble a 2.5-inch hard drive box yourself The operation plan of mobile hard disk is the same as above! It’s just that the hard drive box is 2.5 inches
It is recommended to buy Hitachi Western Digital for laptop hard drives, and it is strongly not recommended to buy Seagate and other brands
Because currently Seagate’s home-grade desktop hard drives are notebook hard drives. There are quite a few problems with hard drives and mobile hard drives!
Do not move or vibrate the mobile hard disk violently during use, and avoid bumps and bumps!
Because the vibration is severe, it will be scrapped. Remember! Be sure to use Safe Delete before removing the hard drive!
Be sure not to pull out the data cable while transmitting data. This will cause serious physical failure!
Once again, don’t buy Seagate. There are too many problems! ! There are so many fake Samsung products that it’s really hard to buy!
Toshiba and Fujitsu hard drives are prone to problems such as hard drive S.M.A.R.
T's C4 and C7 items
So Seagate Samsung...
Question 2: What kind of mobile hard drive is of good quality? The main technical indicators of the mobile hard drive:
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1 Interface Type
The external interface modes of the mobile hard disk box mainly include parallel interface, IEEE1394 and USB.
Parallel interface mobile hard disk boxes appeared earlier, but were eliminated due to their low data transfer rate and lack of support for plug-and-play functionality.
IEEE1394 is also called Friewire. It was proposed by Apple in the mid-1980s and is a standard interface for Apple computers. Its data transmission speed can theoretically reach 400Mbps and supports hot plugging. However, only some high-end PC motherboards are equipped with IEEE1394 interfaces, so their popularity is poor. Recommended for friends with special needs.
The mobile hard disk box with USB interface is the most mainstream interface and supports hot swapping. USB has two standards, USB1. and USB2.0. The USB2.0 transmission speed is up to 480Mbps, which is 40 times that of the USB1.1 interface. USB2.0 requires the support of the motherboard and is backward compatible. USB2.0 mobile hard drive boxes of the same brand are 30 to 50 yuan more expensive than USB1.1 ones. However, considering the huge difference in speed and the fact that USB2.0 has become the mainstream of the market, it is recommended to buy a mobile hard drive box that supports USB2.0. Even if your current motherboard doesn't support it, you can be prepared for future upgrades.
2 Sizes of mobile hard drive boxes
Mobile hard drive boxes are divided into two types: 2.5 inches and 3.5 inches. The 2.5-inch mobile hard drive box uses a laptop hard drive. The 2.5-inch mobile hard drive box is small in size, light in weight, easy to carry, and generally does not have an external power supply.
The 3.5-inch hard drive box uses a desktop computer hard drive, which is large in size and relatively poor in portability. 3.5-inch hard drive boxes generally come with an external power supply and cooling fan, and the price is relatively high.
In addition, there is a 5.25-inch mobile hard disk box, which can not only install a desktop hard disk but also an optical drive to form an external optical drive, but its size is difficult to associate with "portability". It is recommended to purchase a 2.5-inch mobile hard drive box that better meets portability requirements.
3 Power supply
When the 2.5-inch USB mobile hard drive is working, the hard drive and data interface are powered by the computer USB interface. The USB interface can provide 0.5A current, while the operating current of the laptop hard drive is 0.7~1A, so general data copying will not cause problems. However, if the hard disk capacity is large or the mobile files are large, it is easy to suffer from insufficient power supply. Moreover, if the USB interface supplies power to multiple USB devices at the same time, it is also easy to suffer from insufficient power supply, resulting in data loss or even hard disk damage. To enhance power supply, 2.5-inch USB hard disk enclosures generally provide a power cord that draws power from the PS/2 interface. Therefore, when moving larger files, etc., you need to connect the PS/2 power cord (note that the PS/2 interface does not support plug-and-play).
3.5-inch hard drive enclosures generally come with their own external power supply, so power supply is basically no problem. The IEEE1394 interface can provide a maximum current of 1.5A, so there is no need for an external power supply.
4 Materials, heat dissipation and shockproof issues of mobile hard disk boxes
5 Main brands and market divisions
The product classification of each grade in the mobile hard disk box market is relatively clear, and the price There are products ranging from less than 40 yuan to more than 200 yuan. The cost of mobile hard disk boxes mainly lies in the chip. Currently, high-end products in USB2.0 interface mobile hard disk boxes generally use In-System's ISD300 chip and ALi's ALiM5621 chip. Some low-price products mainly use GenesysLogic's GL811 chip. High-end products have stable performance and good compatibility, and some products also come with very practical functions such as USBHUB. The brands of mobile hard drive boxes with good quality on the market include Newman, Mobile Star, Patriot, Pepsiling, Tsinghua Tongfang, etc.
Question 3: Which brand of mobile hard drive has good quality? First, there is never such a thing as "best". From a capacity perspective, generally if 80G is sufficient, there is no need to choose 120G. If 5400 rpm is sufficient, there is no need to choose 7200 rpm. Remember, the one that suits you is the "best".
Second, from a brand perspective, each has its own advantages. Now evaluate the pros and cons of several common brands on the market.
1. Hitachi. Hitachi, the leader in the 2.5-inch hard drive market, bought IBM's technology, so the notebook hard drives you see now are exactly the same as the previous IBM hard drives. This hard drive has been passed down as IBM's unique characteristics: it is durable, average, and its performance is average. Advantages: good compatibility, strong and durable. Disadvantages: Noise, high heat generation, average performance.
2. Samsung. Samsung’s current market share cannot be underestimated. In particular, the unique super-crystal magnetic powder and encryption technology of the Jinbao series have always threatened another strong competitor, Seagate. Advantages: low noise, the cheapest price among similar products. Disadvantages: Too much power consumption. The current power consumption of Samsung hard drives is 5V0.85A, which is nearly double that of competitor Seagate 5V0.487A. It is recommended to be installed in a laptop and not suitable as a mobile hard drive because the maximum output of the USB interface is only 5V0.5A. Long-term load operation will cause data loss.
3, Seagate. Seagate's large hard drives account for 70% of the desktop hard drive market. Due to poor marketing of notebook hard drives, they now rank second behind Hitachi. Seagate's R&D strength is the strongest among its kind. Many in the same industry use Seagate's patented technologies, such as the currently popular ones: vertical reading and writing technology, and free-fall head suspension technology. Advantages: Strongest performance and leading technology. For example, both are 5400 rpm hard drives. Seagate has the lowest power consumption and the fastest speed. Disadvantages: The plate body is delicate, not resistant to falling, and requires extremely high power supply stability.
4. Western Digital. The brand was originally specialized in military industry, and later turned to the civilian market. The market share of 2.5-inch hard drives is not high. This may be due to poor marketing and low consumer recognition. The quality is pretty good, the safety factor is high, and the repair rate is low. Advantages: Super stability, the power consumption of 0.55A is considered very low, and the noise is also well controlled. Disadvantages: Western Digital's disk body is made of special plastic. If BT download is suspended 24 hours a day, forget it. Simply put, it is suitable for mobile hard drives, not laptops.
5, Toshiba, Fujitsu. Why should this brand be introduced together? The reason is very simple. It is very rare on the market and is mainly seen in notebook computers. To put it simply: the power consumption is not too big or not 0.6A, the performance is average, the noise is average, the heat generation is average, and the disk reading error rate is average. However, just because of these averages, this kind of hard drive has an extremely low failure rate and repair rate. , so notebook computer manufacturers particularly like to use these two brands, not to mention Toshiba and Fujitsu themselves are masters of notebook computers. Currently, major manufacturers such as HP use Fujitsu hard drives because the repair rate is low, thus reducing costs, haha.
Third, it’s time to talk about the hard drive box. Friends with a little bit of computer knowledge should know this. The so-called mobile hard drive is actually composed of an ordinary notebook hard drive and a casing with a control chip. This is true regardless of original assembly. Whether it is better to be original or assembled is a matter of opinion and wisdom. If you save a machine with good parts, it will be more expensive than assembling a computer. This principle actually also applies to mobile hard drives. Regarding quality, as long as you use genuine products, the quality is absolutely the same as the original.
After saying so much, I can sum it up in one sentence: There is no best thing, only what is most suitable for you.
Question 4: Which brand of mobile hard drive is better? 2.5-inch mobile hard drive (500GB) cost-effective choice:
Western Digital (WD) ElementsPortable series 2.5-inch mobile hard drive 500GB 479.00 yuan
Seagate Raptor 2.5-inch mobile hard drive 500GB (black) (ST905004EXM101-RK)
499.00 yuan
The above two models are licensed in mainland China For the price of the invoice, you can go to the computer store to find these two models. As long as the price does not exceed this price, you will not suffer. Note: an invoice must be issued and the model number must be clearly stated, otherwise you will not be able to enjoy the free warranty. In addition, the above two models are original mobile hard drives produced by hard drive manufacturers, don’t be fooled by js!
They all have U*** interfaces. 1TB mobile hard drives are basically 3.5 inches, which are large and heavy and unnecessary.
Question 5: Which brand of mobile hard drive is the best? There are generally three points when choosing a mobile hard drive:
1. Do not make it domestically.
If you can only buy domestic products, they can only be Langke and Lenovo. Other domestic brands? That's gambling. The price difference between foreign brands and domestic brands will not be too big. I would rather pay more to buy big brands rather than get cheap.
2. Don’t use a 3.5-inch disk. The so-called desktop mobile hard drive cannot be moved at all. It cannot be moved without an external power supply. Moving it is a piece of cake. The 2.5-inch one is still reliable, so please go straight to solid state.
3. Don’t use one disk. The all-in-one drive is a typical pitfall. Normal mobile hard drives are standard drives + conversion modules. The all-in-one drive has the conversion module integrated on the drive.
More than 90% of general disk failures are contributed by the conversion module. It is self-evident that all-in-one disks have many pitfalls.
In appearance, anything that tends to be square is an all-in-one drive. The low-end drives of the three giants, China, Western Digital, Toshiba, and others are all one-in-one drives. Only Seagate is conscientious.
Question 6: What brand of mobile hard drive is better? Both mechanical hard drives and mobile hard drives below 500G are not cost-effective. 1TB is the most cost-effective at more than 400 yuan each. Choose Western Digital and Seagate, which have always been making hard drives, for their hard drive quality and after-sales maintenance. You don’t have to consider Toshiba or Samsung. brand, of course, the size is 2.5 inches, which is the most convenient! In addition, if you really can’t use that much storage space, one below 500G can completely meet your needs. You can also consider a smaller 1.8-inch mobile hard drive, but neither Seagate nor Western Digital make mobile hard drives of this size. You can choose the Newman brand, which has long been involved in the field of 1.8-inch mobile disks, such as the 60GB Newman Minicard Jiyun 1.8-inch mobile hard drive, priced at more than 90 yuan.
Question 7: Which brand of mobile hard drive is good? Aite Data Recovery has the answer for you: There are many brands of mobile hard drives on the market now. Neither mechanical hard drives nor mobile hard drives below 500G are cost-effective. 1TB is the most cost-effective, costing more than 400 yuan each. Choose Western Digital and Seagate, which have been making hard drives, for their quality and after-sales maintenance (of course you can also consider them). Toshiba or Samsung brands), the size is of course 2.5 inches for the most convenience! In addition, if you really can’t use that much storage space, one below 500G can completely meet your needs. You can also consider a smaller 1.8-inch mobile hard drive, but neither Seagate nor Western Digital make mobile hard drives of this size. You can choose the Newman brand, which has long been involved in the field of 1.8-inch mobile disks, such as the 60GB Newman Minicard Jiyun 1.8-inch mobile hard drive, priced at more than 90 yuan. If you don't have much use, use Seagate. Seagate is faster than Western Digital for transferring files. If your mobile hard drive is damaged and data is lost later, you can contact our Aite Data Recovery Center as soon as possible. With fifteen years of experience in hard drive data recovery, Aite Data Recovery can definitely help you solve your data recovery problems. Hope it helps.
Question 8: Which brand of mobile hard drive is the best? There are not many hard drive brands to choose from, there are only two giants.
Western Digital and WestJet. These two brands together account for more than 95% of the market share.
The remaining 5% are only Samsung, Toshiba and Hitachi. No, Hitachi hard drives were delisted some time ago.
In the mobile hard disk market, there are slightly more brands. But the only brands that are truly 100% original are Western Digital, WestJet, and Toshiba, which produce their own hard drives. Samsung does not produce mobile hard drives, and all original Samsung products on the market are knockoffs.
If you are interested in Toshiba and Seagate, there is no doubt that you will choose WestJet. Nowadays, brands are getting stronger and weaker. It is very likely that today's Hitachi hard drive will be tomorrow's Toshiba hard drive.
If you are interested in Seagate or Western Digital, it will be difficult to choose. The quality brands are the same. Let’s look at the appearance and functionality.
Question 9: What brand of mobile hard drive is good? I have bought two types. One is Hitachi (bought in college), and it feels average when used. The other is Seagate ST1T1TBST31000528AS7200.12 (currently in use). ). Seagate's hard drive can be said to be the best among hard drives. At least I feel good after using it. Of course, I bought a bare drive and also bought a 3.5-inch hard drive extraction box. ORICO's is good. The price of the hard drive is I bought it on Taobao for about 400. I bought the box for less than 200. It may be cheaper now. If you think the 1T one is too big and inconvenient to use, you can buy a 500G one, which is easy to carry. It only costs 400 with the box and disk. It looks like left and right. Of course, I still recommend the professional brand Seagate.
Question 10: Which mobile hard drive is good? Western Digital and Seagate brands of mobile hard drives are better.
Mobile Harddisk, as the name suggests, is a storage product that uses a hard disk as a storage medium and exchanges large-capacity data between computers, emphasizing portability. The vast majority of mobile hard drives on the market are based on standard hard drives, while only a few are based on micro hard drives (1.8-inch hard drives, etc.). However, price factors determine that mainstream mobile hard drives are still based on standard notebook hard drives.
Because the hard disk is used as the storage medium, the data reading and writing mode of the mobile hard disk is the same as that of the standard IDE hard disk. Mobile hard drives mostly use faster transmission interfaces such as USB and IEEE1394, which can transmit data to the system at a higher speed.
To encrypt data on a mobile hard disk, you can try U Disk Super Encryption 3000. The software is green and installation-free. Put the software on the U disk and you can transfer it to other computers with the mobile hard disk. The encryption speed is fast and the security is high.
Mobile hard drive interface types
1. Thunderbolt interface: Thunderbolt interface not only has powerful information transmission capabilities, but can also transmit data and video signals at the same time, with a transmission speed of up to 40Gbps. By connecting multiple external monitors and expanding multiple high-performance graphics cards through a daisy chain connection, you can connect up to 6 devices and a display device with a native DP interface.
2. USB interface: USB3.0, USB2.0, USB3.1, USB3.2. Mobile hard drives with this interface generally use MiniUSB interface on the disk body to reduce space occupation and connect to the computer. Then use the standard USB interface. The USB2.0 version is limited by the bridge chip and has poor performance. USB3.0 can better utilize the performance of the hard drive.
3. Wireless/Wi-Fi: Wireless mobile hard drives are designed for smartphones and tablets in today's smart era. It integrates a battery and a wireless module. As long as your wireless terminal device is connected to it through WiFi, you can access the data in it and completely get rid of the trouble of data lines. It should also have PPPoe dial-up function to access wired and wireless signals.
4. Type-C: Type-C is a connection interface of the USB interface. The biggest feature is that it can be inserted into both sides, so it is very easy to use and popularizes quickly.
5. IEEE1394 interface: Also known as Friewire interface, it has high data transmission rate. IEEE1394a interface can provide 100Mbps, 200Mbps, 400Mbps and other transmission formats; IEEE1394b can provide 800Mbps data transmission rate. IEEE1394 was originally an interface on Apple computers, but is relatively rare on ordinary desktop computers;
6. SATA interface: It uses an embedded clock signal and has stronger error correction capabilities. Compared with the past, it has the largest The difference is that it can check the transmission instructions (not just data), and automatically correct if errors are found, which greatly improves the reliability of data transmission.
Which interfaces are better for mobile hard disks
There are about 4 types of mobile hard disk interfaces: one is UBS1.1 (this interface can provide 12Mbps); the other is UBS2.0 (this interface can Provide 480Mbps); the third is IEEEa1394 (this interface can provide 400Mbps); the fourth is IEEEb1394 (this interface can provide 800Mbps), these are the current mobile hard disk interface and the ideal maximum data transfer rate of each interface. It is obvious that the IEEE1394 interface is good, but the corresponding The price should be higher.
Selection reference: first, it should be based on your economic conditions; second, it should be based on whether the corresponding interface of your computer matches.
What is the interface of a mobile hard disk? Characteristics of the four types of interfaces
Mobile hard disks can be divided into four types according to the external interface: parallel interface, USB interface, IEEE1394 interface and SATA interface. Most of their built-in interfaces are IDE interfaces, which are used together with hard drives with IDE interfaces. These four types of interfaces have the following characteristics:
1. The hard disk enclosure with a parallel interface (i.e. ATA interface) is the earliest hard disk enclosure and is connected to the computer through the computer's parallel interface. It is characterized by fast transmission speed and low price. The disadvantage is that it is inconvenient to install and use and requires an independent switching power supply;
2. Mobile hard disk boxes with USB interfaces are currently mainstream. Its biggest advantage is that it is easy to use and supports hot plug and play;
3. The IEEE1394 interface is also called the FireWire interface (commonly known as "Firewire" in Chinese) and has a high data transmission rate. The IEEE1394a interface can provide 100Mbps, 200Mbps, 400Mbps and other transmission formats; IEEE1394b can provide a data transmission rate of 800mbps. IEEE1394 was originally an interface for Apple computers, but it is relatively rare in ordinary desktop computers;
4. The SATA interface uses an embedded clock signal and has stronger error correction capabilities. The biggest difference compared to the past is that it can check transfer instructions (not just data). If an error is found, it will be automatically corrected, greatly improving the reliability of data transmission.