RSS2.0
http://www.kuroutoshikou.com/product/interface/usb/usb3_0-pcie-p2h2/
PCでの認識状況は
02:00.0 USB controller: Renesas Technology Corp. uPD720201 USB 3.0 Host Controller (rev 03)
$ Linux arch 4.8.13-1-ARCH #1 SMP PREEMPT Fri Dec 9 07:24:34 CET 2016 x86_64 GNU/Linux
$ hdparm -ft /dev/sdh3
追加USB3.0カードより接続
/dev/sdh3:
Timing buffered disk reads: 132 MB in 3.01 seconds = 43.79 MB/sec
$ hdparm -ft /dev/sdh3
PCマザーボードUSB2.0ポートより接続
/dev/sdh3:
Timing buffered disk reads: 98 MB in 3.02 seconds = 32.41 MB/sec
効果はいくらかあるようだが体感できない(笑)
念の為に
$ lsusb -t
/: Bus 04.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 5000M
|__ Port 4: Dev 2, If 0, Class=Hub, Driver=hub/4p, 5000M
/: Bus 03.Port 1: Dev 1, Class=root_hub, Driver=xhci_hcd/4p, 480M
|__ Port 4: Dev 2, If 0, Class=Hub, Driver=hub/4p, 480M
/: Bus 02.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/8p, 480M
|__ Port 2: Dev 9, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 3: Dev 3, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 5: Dev 4, If 0, Class=Vendor Specific Class, Driver=, 12M
|__ Port 6: Dev 5, If 0, Class=Hub, Driver=hub/4p, 480M
|__ Port 3: Dev 8, If 0, Class=Vendor Specific Class, Driver=, 12M
|__ Port 7: Dev 6, If 0, Class=Mass Storage, Driver=usb-storage, 480M
|__ Port 8: Dev 7, If 0, Class=Mass Storage, Driver=usb-storage, 480M
/: Bus 01.Port 1: Dev 1, Class=root_hub, Driver=ehci-pci/2p, 480M
|__ Port 1: Dev 2, If 0, Class=Hub, Driver=hub/6p, 480M
|__ Port 3: Dev 8, If 0, Class=Human Interface Device, Driver=usbhid, 1.5M
Y:
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