- #Usb 3 transfer rate faster than sata how to
- #Usb 3 transfer rate faster than sata Pc
- #Usb 3 transfer rate faster than sata mac
- #Usb 3 transfer rate faster than sata windows
#Usb 3 transfer rate faster than sata how to
USB is well underway to being one of two "be-all-end-all" connectors for consumer tech of the future.
#Usb 3 transfer rate faster than sata windows
However, Asus is alone in supporting UAS in Windows 7, and it does so through by licensing MCCI's ExpressDisk UASP Driver.īTW, very interesting article. Syba SD-PEX20 112: Based on Asmedia ASM1042 USB 3.0 Host Controller ICSyba SD-PEX20 122: Based on VLI VL80x USB 3.0 Host Controller IC(This model includes a 20-pin header for up to 2(two) additional external USB 3.0 connectors on newer cases which can be used simultaneously with the rear connectors, so this is technically a 4-port card and is the better deal IMO, but I digress.) This is the correct link: Syba SD-PEX20112 The model the link sends you to is SD-PEX20 122, which has the VLI VL80x chipset. The model referenced was SD-PEX20 112, which does include the ASM1042 controller. Is this referring to something else, or has Syba switched to a different controller since the time this article was written?ĮDIT: Nevermind, the article linked to the wrong card but referenced the correct model number. This article says that the Syba SD-PEX20122 card has ASM1042 controller hardware, yet Syba's site and everywhere else says that this card is based on "VLI VL80x USB 3.0 Host Controller IC". I imagine USB might just become a smaller part unless the reengineer the protocols and encoding but that might also kill any backwards compatibility it has currently. So while USB 3.0 is great for where I work and such, as a lot of customers may not be able to afford eSATA or TB devices or have those on their PC, its not going to be able to keep up with demands of people who use multiple large eHDDs for data storage and thats where eSATA 6Gbps and TB will come into play. I imagine if the drive had a better controller (say current Sandforce) it could reach 500MB/s (SATA 6Gbps speeds easily since the interface was designed with this in mind. As well, it reaches almost 300MB/s read and write which is just as fast as a SATA 3Gbps SSD goes. A 4GB file will have a better average transfer rate than a 4MB file on USB, eSATA or TB.
#Usb 3 transfer rate faster than sata mac
While its a Mac based drive you can clearly see that as the size goes up (4KB->1024KB), the speed goes up which makes sense. And while its nice to have a faster USB standard like USB 3.0, the main idea behind USB, a single connector for peripherals like mice, KB and printer, was designed when eHDDs were almost non existent.įirewire was designed more with eHDDs and the such in mind and had better encoding and protocols in place to support eHDDs and such.Įven better is Thunderbolt which has shown the ability to reach top end speeds of the attached device:
One thing with USB is that it was never designed for massive large data thoroghputs like eHDDs and larger flash drives. This combination of lower signal overhead and more efficient data transfers helps boost performance on older and cheaper computer systems, freeing the processor for other tasks. The addition of command queuing support opens the door to better performance because storage operations are processed in parallel. The UAS protocol is more efficiently streamlined, creating less work for the host CPU. USB imposes a significant processing overhead using BOT, which helps explain why USB 2.0 and 3.0 often shows so poorly on older machines. As one Western Digital engineer pointed out, this technology is a real boon in the mobile and low-end desktop spaces.
#Usb 3 transfer rate faster than sata Pc
In comparison, we hit 350 and 70 MB/s in both metrics, respectively, with our shipping hardware.Īt the end of the day, UAS still offers tremendous potential, though PC enthusiasts might not even be the primary beneficiaries of it. According to several of the engineers we contacted, development hardware achieves sequential speeds as high as 430 MB/s and random I/O exceeds 100 MB/s. Some of the vendors we contacted report much higher numbers than the ones reported here in their own labs, and we have every reason to believe higher speeds are possible. UAS is a fairly new technology, and so we're withholding judgement on it for now.