ADATA LEGEND 900 2000GB

The ADATA LEGEND 900 2000GB is a PCIe 4.0 NVMe drive that targets Gen4 interface bandwidth while using a DRAM-less architecture. It typically uses the Maxio MAP1602 controller (or an equivalent) with high-density 3D TLC NAND and relies on Host Memory Buffer (HMB) instead of onboard DRAM. The unit ships with a thin, adhesive-backed aluminum heat spreader and its sequential read speeds exceed Sony’s 5500 MB/s requirement for PS5 expansion.

Key Specifications

• Interface: PCIe Gen 4.0 x4, NVMe 1.4
• Sequential Speeds: 7000 MB/s Read, 5400 MB/s Write
• Controller Architecture: DRAM-less (Maxio MAP1602 or equivalent)
• NAND Type: 3D TLC (Triple-Level Cell)
• Cache: SLC Caching + Host Memory Buffer (HMB)
• Encryption: LDPC and AES 256-bit
• Thermal: Thin, adhesive-backed aluminum heat spreader
• PS5 Compatibility: Sequential read speeds exceed Sony’s 5500 MB/s requirement

Hardware Alternatives

• Lexar NM790 2000GB: Shares a nearly identical architectural profile, utilizing the same controller/NAND combination in most regions.
• Acer GM7000 2000GB: Direct hardware relative relying on the HMB architecture to achieve similar sequential throughput.
• Western Digital WD_BLACK SN770 2000GB: Competes in the same high-performance DRAM-less segment and uses a proprietary Western Digital controller.
• Samsung 980 PRO 2000GB: Uses a DRAM-based architecture while targeting the same sequential read performance tier as the LEGEND 900.