Zero media and data integrity errors, zero failed or failing indicators. Full SMART report included in listing photos. 117 hours power-on time, 6.9 TB written, 7.7 TB read. Unsafe shutdown count of 321 reflects occasional disconnects without ejecting, not crashes or system failures. No thermal throttling, running cool at 26°C. Model: WD_BLACK SN770 2TB, Firmware 731100WD. PCIe Gen4 NVMe M. Up to 5,150 MB/s read. Compatible with desktop PC or laptop.