我買了這個
PNY Attache 2 128GB USB 3.0 隨身碟 型號: P-FD128TBAT2-GE

Description: [K:]USB Mass Storage Device(PNY USB 3.0 FD)
Device Type: Mass Storage Device

Protocal Version: USB 3.00
Current Speed: Super Speed
Max Current: 400mA

USB Device ID: VID = 154B PID = FA05
Serial Number:

Device Vendor: PNY Technologies
Device Name: USB 3.0 FD
Device Revision: 1075

Manufacturer: PNY
Product Model: USB 3.0 FD
Product Revision: 1.00

Controller Part-Number: Unknown


HD Tune Pro: PNY USB 3.0 FD 基準

測試容量: 全部

讀取資料傳輸率
資料傳輸率最小值 : 183.8 MB/s
資料傳輸率最大值 : 190.5 MB/s
資料傳輸率平均值 : 184.7 MB/s
資料存取時間 : 0.571 ms
突發資料傳輸率 : 72.6 MB/s
CPU 使用率 : 10.9%

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CrystalDiskMark 3.0.2 x64 (C) 2007-2013 hiyohiyo
Crystal Dew World : http://crystalmark.info/
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* MB/s = 1,000,000 byte/s [SATA/300 = 300,000,000 byte/s]

Sequential Read : 197.584 MB/s
Sequential Write : 80.344 MB/s
Random Read 512KB : 164.516 MB/s
Random Write 512KB : 4.629 MB/s
Random Read 4KB (QD=1) : 7.313 MB/s [ 1785.5 IOPS]
Random Write 4KB (QD=1) : 0.090 MB/s [ 22.0 IOPS]
Random Read 4KB (QD=32) : 6.455 MB/s [ 1575.8 IOPS]
Random Write 4KB (QD=32) : 0.113 MB/s [ 27.6 IOPS]

Test : 1000 MB [K: 0.8% (1.0/119.2 GB)] (x5)
Date : 2015/01/06 16:51:19
OS : Windows 7 Ultimate Edition SP1 [6.1 Build 7601] (x64)

用AS SSD
隨機就剩(4K好久好像當機了)
R-180MB
W-70MB

用MSI Z87G45插在前置USB3上.