TS256GMTS550T, Transcend MTS550T M.2 256 GB Internal SSD Hard Drive

Space-saving M.2 form factor (42mm) – ideal for mobile computing devices
Supports DevSleep mode, which allows devices to completely shut down the SATA interface and conserve battery life unlike existing partial/slumber states (optional)
Supports S.M.A.R.T., TRIM and NCQ command
Supports Advanced Garbage Collection
Advanced Global Wear-Leveling and Block management for reliability
Built-in LDPC ECC (Error Correction Code) functionality
Great shock resistance
Non-volatile Flash Memory for outstanding data retention

Datasheet TS256GMTS550T