The Dell/Samsung PM863a is a 3.84TB enterprise-class read-intensive SATA solid state drive built on Samsung's 3D TLC NAND flash architecture, engineered for sustained around-the-clock performance in data center and server storage environments, and delivers up to 520 MB/s sequential read and up to 480 MB/s sequential write with random performance reaching up to 97,000 IOPS read and 24,000 IOPS write over its SATA 6Gb/s (6Gbps) interface, making it well suited for read-heavy workloads such as content delivery, web hosting, and cloud storage applications; endurance is rated at 1.3 DWPD over a 3-year period backed by a 5,466TB total bytes written (TBW) rating, with a 2 million hour MTBF reliability rating, AES 256-bit hardware encryption, NCQ (up to 32 command depth) and TRIM support, plus power-loss data protection via onboard capacitor power that flushes cached data to NAND flash in the event of unexpected power loss, and this unit carries dual Dell/Samsung branding (DPN 09Y3HD) and works in any system supporting a standard 2.5-inch SATA interface — not limited to Dell systems — housed in a 2.5-inch, 7mm form factor for broad server and storage chassis compatibility.