Tested on a 3 Gb / s port with Crystal DiskMark, the results are the following: Sequential Read: 274 209 MB / s Sequential Write: 257 635 MB / s 512KB Random Read: 208 002 MB / s 512KB Random Write: 251 407 MB / s 4KB Random Read (QD = 1): 23 562 MB / s 4KB Random Write (QD = 1): 65 284 MB / s 4KB Random Read (QD = 32): 180 744 MB / s 4KB Random Write (QD = 32): 205 447 MB / s [IOPS 50157.9] Test: 500 MB [J: 0.1% (0.1 / 111.8 GB)] (x2) Date: 2015/04/23 0:00:04 OS: Windows 8.1 Pro [6.3 Build 9600] (x64) It deserves to do a test on a port 6Gb / s, but this one is already taken by my system disk. By comparing the results obtained with a Samsung 830 128GB SSD and a 120GB Kingston, the results are quite close with better write performance for PNY. The disc is delivered bare, no doc, no optimization software or cloning, no screws or wires, just a 2mm spacer sticker for mobile hosting 9 mm discs. Housed in a NoteBook it significantly improves startup and extends the battery life. Overall this is a good entry-level SSD, just a shame it delivered bare. Intended mostly to replace a system disk, cloning software accepting copying to a disk smaller capacity than the source disc would have been welcome.