TRANSCEND 512GB SATA III 6Gb/s 2.5-Inch Solid State Drive (SSD) (Seq. R/W 570MB/s 470MB/s)

Capacity	32GB, 64GB, 128GB, 256GB, 512GB, 1TB
Size	99.8mm × 69.8mm × 7mm (2.75" x 3.93" x 0.28")
Weight	52g (1.83oz)
Storage Media	Synchronous MLC NAND Flash memory
Operating Voltage	DC 5V
Operating Temperature	0°C (32°F) to 70°C (158°F)
Certificates	CE, FCC, BSMI
Warranty	3 years (The 3 years warranty does not apply when SSD Scope's wear-out indicator shows 0% within 3 years)
*Note:	Speed may vary due to host hardware, software and usage.

http://www.transcend-info.com/Files/EDM/ProductSheet_SATAIIIseries_V14.pdf 
Specs (Read-Write) in MB/s : 560-460