SSD 120GB Transcend 820S SATA III M.2

Dimensions 80.0 mm x 22.0 mm x 3.58 mm (3.15" x 0.87" x 0.14")
Weight 9 g (0.32 oz)
Type M.2 2280
Interface SATA III 6Gb/s
Flash Type 3D NAND flash
Capacity 120 GB
Operating Temperature 0°C (32°F) ~ 70°C (158°F)
Operating Voltage 3.3V±5%
Sequential Read/Write (CrystalDiskMark)
120 GBup to 500/350 MB/s
4K Random Read/Write (IOmeter) 120 GB up to 28,000/75,000 IOPS
Terabytes Written (TBW) 120 GB40 TBW
Mean Time Between Failures (MTBF) 2,000,000 hour(s)

https://www.transcend-info.com/Products/No-749