Biwin M350 1000GB

The Biwin M350 is a mid-range PCIe 4.0 NVMe storage solution built around a DRAM-less architecture that leverages Host Memory Buffer (HMB) technology to manage mapping tables via system RAM. It uses the Maxio MAP1602 controller paired with high-density 3D TLC NAND in a single-sided M.2 2280 form factor, tuned for intermediate sequential throughput and optimized for power efficiency and thermal performance.

Key Specifications

• Capacity: 1000GB
• Interface: PCIe 4.0 x4 / NVMe 1.4
• Controller: Maxio MAP1602 (DRAM-less)
• NAND Flash: 3D TLC
• Sequential Read: Up to 5200 MB/s
• Sequential Write: Up to 4800 MB/s
• MTBF: 2,000,000 hours
• Physical Traits: Single-sided PCB (2280)

Hardware Alternatives

• Lexar NM790 1000GB: Shares the same Maxio MAP1602 controller DNA but is typically paired with higher-binned NAND to achieve saturation speeds (7000+ MB/s), positioning it as a higher-binned sibling to the M350.
• Western Digital WD_BLACK SN770 1000GB: Operates in the same performance bracket (approx. 5150 MB/s read) and uses a proprietary Western Digital controller to achieve similar HMB-based results.
• TeamGroup MP44L: A direct competitor often utilizing the Phison E21T controller, offering nearly identical sequential throughput and endurance ratings without onboard DRAM.