Adata Legend 800 500GB M.2 NVMe Gen4 Internal SSD

The Adata Legend 800 500GB (model ALEG-800-500GCS) is a compact M.2 2280 form-factor solid-state drive built around the PCIe Gen4 x4 interface and the NVMe 1.4 protocol. Designed for desktops and notebooks that support current-generation Intel and AMD platforms, it delivers sequential read speeds of up to 3,500 MB/s and sequential write speeds of up to 2,200 MB/s — performance that the source data indicates is roughly twice that of a comparable PCIe Gen3 drive and significantly ahead of SATA-based storage. The drive uses 3D NAND flash memory paired with SLC caching and Host Memory Buffer (HMB) technology. HMB allows the drive to borrow a small portion of system RAM as a pseudo-DRAM cache, smoothing out latency during mixed workloads such as 3D design, video editing, and large file transfers. Data integrity is managed through hardware LDPC (Low Density Parity Check) error-correction, which helps maintain accurate read and write operations over the drive's lifetime. The Legend 800 ships with a black heat-sink cover featuring a bronzed trim and sandblasted surface treatment. With the heat sink fitted, total dimensions are 80 × 22 × 2.65 mm and weight is 9.3 g; without the heat sink the height drops to 2.15 mm and weight falls to 6.3 g, making it compatible with slim notebooks that have height-restricted M.2 slots. The drive is rated for operation between 0 °C and 70 °C and for storage between −40 °C and 85 °C, with a shock-resistance rating of 1,500 G at 0.5 ms. Adata backs the Legend 800 with a 3-year limited warranty. The GTIN for this SKU is 4711085940216. Verified Specifications: • Model / Part Number: LEGEND 800 PCIe Gen4 / ALEG-800-500GCS • Capacity: 500 GB • Interface: PCIe Gen4 x4 • Protocol: NVMe 1.4 • Form Factor: M.2 2280 • NAND Flash: 3D NAND • Sequential Read (Max): up to 3,500 MB/s • Sequential Write (Max): up to 2,200 MB/s • TBW (Terabytes Written): 300 TB • MTBF: 2,000,000 hours • Shock Resistance: 1,500 G / 0.5 ms • Operating Temperature: 0 °C – 70 °C • Storage Temperature: −40 °C – 85 °C • Dimensions (with heat sink): 80 × 22 × 2.65 mm • Dimensions (without heat sink): 80 × 22 × 2.15 mm • Weight (with heat sink): 9.3 g • Weight (without heat sink): 6.3 g • Warranty: 3-year limited • GTIN: 4711085940216