Biwin NV7400 2000GB

The Biwin NV7400 2000GB is a high-performance NVMe storage solution designed to saturate the PCIe 4.0 x4 interface bandwidth without onboard DRAM. It uses the Maxio MAP1602 controller with Host Memory Buffer (HMB) to cache mapping tables in system RAM and pairs that controller with high-layer 3D TLC NAND (typically 232-layer) to reach sequential read targets exceeding 7000 MB/s. The 2TB variant uses a single-sided M.2 2280 PCB, improving compatibility with slim laptops and consoles.

Key Specifications

• Interface: PCIe Gen 4.0 x4, NVMe 1.4
• Sequential Read/Write: 7450 MB/s / 6500 MB/s
• Controller: Maxio MAP1602 (ARM Cortex-R5 architecture, 4-channel, DRAM-less)
• NAND Flash: High-layer 3D TLC (Typically 232-Layer)
• Form Factor: M.2 2280 (Single-sided PCB)
• Endurance: High TBW rating typical of high-density TLC implementations

Hardware Alternatives

• Acer GM7000 2000GB: Biwin is the OEM for Acer’s Predator GM7 variant, making this essentially a first-party counterpart that shares the same BOM and design approach.
• Lexar NM790 2000GB: Shares architectural similarities and the Maxio MAP1602 platform, offering similar burst performance and HMB-based caching.
• TEAMGROUP MP44Q 2000GB: Another Maxio MAP1602-based design with comparable performance characteristics and a DRAM-less, HMB-reliant architecture.
• Samsung 990 PRO 2000GB: A flagship DRAM-equipped drive with an in-house controller and dedicated DRAM cache, providing more consistent sustained performance under heavy workloads compared to HMB-based designs.
• Western Digital WD_BLACK SN850X 2000GB: Another DRAM-equipped competitor that uses an in-house controller and dedicated DRAM for greater consistency during extended heavy writes.