品牌 | STARTECH.COM |
---|---|
制造商 | STARTECH.COM |
型号 | ECUSB3S22 |
商品尺寸 | 11.43 x 4.06 x 1.27 cm; 32 克 |
制造商是否已停产 | 不是 |
颜色 | Black |
操作系统 | Windows XP(32/64-bit) / Server 2003(32/64-bit) / Vista(32/64-bit) / Server 2008 R2 / 7(32/64-bit) |
是否包含电池 | 不是 |
商品重量 | 32 g |
亚马逊的其他卖家
STARTECH.COM 2 端口 ExpressCard SuperSpeed USB 3.0 卡适配器,带 UASP - USB 3.0 控制器 - USB 3.0 ExpressCard - USB 3.0 适配器 (ECUSB3S22)
StarTech.com 2 Port ExpressCard SuperSpeed USB 3.0 Card Adapter with UASP - USB 3.0 Controller - USB 3.0 ExpressCard - USB 3.0 Adapter (ECUSB3S22)
页面含机器翻译,中文仅供参考,以原文为准
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ASIN | B006K25AX4 |
---|---|
用户评分 |
4.1 颗星,最多 5 颗星 |
Amazon.cn上架时间 | 2015年4月16日 |
我来补充
商品描述
商品描述
Startech 2 Port ExpressCard SuperSpeed USB 3.0 Card Adapter ECUSB3S22 USB Adapters
安全警告
The ECUSB3S22 2-Port ExpressCard USB 3.0 Card adds 2 SuperSpeed USB 3.0 ports to an ExpressCard-enabled computer system, using a 34mm form factor that will fit in both 34mm and 54mm slots, along with ports mounted side-by-side for easy access. Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details. USB 3.0 supports data transfer rates up to 5 Gbps (10x faster than USB 2.0) and is able to provide more power per port, to help support faster and more powerful devices. Also, this ExpressCard adapter is backward compatible with USB 2.0/1.x, so all of your existing devices will still work. Backed by a StarTech.com 2-year warranty and free lifetime technical support. Improved Performance with UASP UASP is supported in Windows® 8 and Server 2012. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.
重要信息
安全警告
The ECUSB3S22 2-Port ExpressCard USB 3.0 Card adds 2 SuperSpeed USB 3.0 ports to an ExpressCard-enabled computer system, using a 34mm form factor that will fit in both 34mm and 54mm slots, along with ports mounted side-by-side for easy access. Enhanced with UASP support (USB Attached SCSI Protocol), this USB 3.0 controller performs up to 70% faster than conventional USB 3.0 when paired with a UASP supported enclosure (Note: UASP requires a compatible operating system). Using a more efficient protocol than the traditional USB BOT (Bulk-Only Transport), UASP technology optimizes transfers by allowing multiple commands to be processed simultaneously, significantly increasing transfer speeds for less wait time on data transfers. See our UASP test results below for further details. USB 3.0 supports data transfer rates up to 5 Gbps (10x faster than USB 2.0) and is able to provide more power per port, to help support faster and more powerful devices. Also, this ExpressCard adapter is backward compatible with USB 2.0/1.x, so all of your existing devices will still work. Backed by a StarTech.com 2-year warranty and free lifetime technical support. Improved Performance with UASP UASP is supported in Windows® 8 and Server 2012. In testing UASP performed with up to a 70% faster read / 40% faster write speed over traditional USB 3.0 at peak performance. At the same peak in testing, UASP also showed up to an 80% reduction in required processor resources. Test results were obtained using an Intel® Ivy Bridge system, StarTech.com add-on USB 3.0 cards, a UASP-enabled StarTech.com enclosure, and a SATA III solid state drive.
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此商品在美国亚马逊上最有用的商品评论


ExpressCard slots are basically PCI 1x slots that you find in modern desktop PC's. Unfortunately the original (version1) ExpressCard slot's, found on 2010 and older laptops, only have 2.5 GB/sec bandwidth. USB 3.0 is rated for 5.0 GB/sec. So, right off the bat, you need to realize that your only going to get 1/2 the speed of a native USB 3.0 port. Another issue is power. USB 2.0 ports should provide up to 0.5 amps of power, but USB 3.0 ports should provide up to 0.9 amps. There is a little cable included with this card that's supposed to provide additional power to the USB 3.0 ports by plugging in to a USB 2.0 port. This didn't work for me, and I kept crashing my laptop when I plugged in a power hungry device like a portable hard drive. Funny thing is that same drive (technically a USB 2.0 device) works fine when plugged in to a USB 2.0 port. I had to use a powered hub in order to use them with this card. It's not all bad though. I could use a flash memory stick or (sometimes) a SSD hard drive without needing to use the hub.
Another problem I encountered was finding the Windows driver for this card. The package does include a mini CD and the correct driver was on the disc, but it's a multi device CD that does not AutoPlay (paper instructions says it does), and the folder names on the CD are cryptic. I tried downloading updated drivers from the manufacturer's web site, and those didn't work either. I sent an e-mail to StarTech and they responded that new drivers would be released soon. Since "soon" could be anything from a few days to a few weeks, I wanted to either get this card working or return it to Amazon before the return window expired. I started digging in to the contents of the CD and examined every folder. I was looking for the hardware device ID string in one of the INF files. I finally found it, got the drivers installed, and the card is now working. The manufacturer has since released a new set of drivers on their web site. I've not tried them, so I don't know if they work or not. I'm still using the drivers I found on the CD (under the 72021_2 folder). I have swappable hard drives in my laptop and I can confirm these same drivers work with Windows XP and Windows 7 64-bit.
I did a little more digging and apparently my card has a newer host controller chip. The drivers posted on the manufacturer's web site for this card are for the older host controller chip. If you get the updated version of this card like I did, you want to use the RENESAS-USB3-Host-Driver-30160-setup.exe to install the drivers.
So after all of these problems and limitations, why am I still giving this card 4 stars? SPEED.
Even though these ports work at half USB 3.0 speeds, they are still up to 5x faster than USB 2.0 ports. I also discovered that USB 2.0 devices were showing a 10 - 20% faster read AND write times during my tests. Devices designed for USB 3.0 are even faster. Maybe not as fast as they could be with native USB 3.0 ports, but definitely faster than USB 2.0 ports.
Final Note: Wikipedia shows that ExpressCard specifications also include pins for USB ports (from your motherboard chipset). On an older laptop this would be USB 2.0 ports. If you have native USB 3.0 ports on your laptop, then these should be USB 3.0 ports. I've seen some extremely cheap USB 3.0 ExpressCards. I don't know for sure, but these cheap cards could be just exposing those existing USB ports, and that's why they are so cheap. Since I had so many problems finding the correct drivers for this card's host controller, I know it's the real deal.

This is for a Win7-era laptop that had the correct slot. It worked okay, but not as well as I hoped.
Being an add-on, this ExpressCard allows you to add two USB 3.0 ports on a laptop that only has USB 2.0 ports. USB3, SuperSpeed, greatly speeds up copying from hard drive to usbstick. This works within certain limitations.
1) It's been about a year, and Renasas has never updated the driver for Win7. I keep checking but nothing newer, so I have to live with the limitations. You must use the Renasas driver; there is no MSFT driver for this addon hardware.
2) Being an add on, the hardware IS NOT RECOGNIZED AT BOOTUP and is not available until Win7 has booted up completly. This means you CANNOT boot from a USB 3.0 usbstick using this ExpressCard. In addition, until Win7 is booted completely, NO USBSTICKS are recognized by the ExpressCard at all.
3) It worked okay to copy data from and to the hard drive with USB 2.0 and 3.0 sticks for about 2 weeks,
but then became totally unresponsive. I tried reinstalling the driver, rebooted, reinsterting card, etc. The pattern remains this way: Once Win7 boots completely, you can use USB3 ports for send and receive data. If you do not use the ExpressCard for a certain period of time (not sure, guess half hour or hour) DURING THAT SAME SESSION, it is completely unresponsive. The only way that helps is to shutdown the laptop, reboot again into Win7, then it works again. So THE DRIVER WORKS but at some point, it "let's go" and stops working. You reboot and it works again. Annoying. I didn't return it but live within its limitations. When it works, you can copy large amounts of data quickly.
Nowdays, laptops come with USB3 supported by the hardware mfr and MSFT, so you can boot from USB 3.0 devices.