HP S750 512GB

The HP S750 512GB is a consumer-grade SATA III solid-state drive in the M.2 2280 form factor, manufactured by BIWIN Storage Technology under license from HP. It uses a DRAM-less design typically pairing a Silicon Motion SM2259XT controller with high-density 3D TLC NAND. Lacking a dedicated DRAM cache, the S750 relies on SLC caching algorithms and 4K random read/write optimization within the controller to saturate the SATA 6Gbps bus during burst workloads. Sustained write performance is heavily dependent on SLC cache capacity; once the cache is exhausted, transfer rates drop to native NAND speeds. Component variance may occur between production batches depending on the NAND manufacturer. Note that this drive uses the SATA protocol and will not function in M.2 slots keyed exclusively for PCIe/NVMe.

Key Specifications

• Capacity: 512GB
• Interface: SATA III 6Gb/s
• Form Factor: M.2 2280 (Double-notched B+M Key)
• Controller: Silicon Motion SM2259XT (DRAM-less)
• NAND Configuration: 3D TLC (Triple-Level Cell)
• Sequential Read/Write: 560 MB/s / 520 MB/s
• Endurance (TBW): 320 TBW
• MTBF: 2,000,000 Hours
• Advanced Features: LDPC Error Correction, SLC Caching

Hardware Alternatives

• Crucial BX500: primary direct competitor in terms of architecture; similar theoretical performance limits due to the SATA ceiling and omission of DRAM buffering, relying on controller-level optimization.
• WD Green SA510: primary direct competitor in terms of architecture; similar theoretical performance limits due to the SATA ceiling and omission of DRAM buffering, relying on controller-level optimization.
• HP S700 Series: the S750 serves as the direct successor to the older S700; controller logic is similar but the S750 uses newer-generation NAND with higher layer counts, offering slightly improved endurance and density.
• Samsung 870 EVO: represents the performance ceiling for the SATA interface; uses a dedicated DRAM cache and offers superior consistency in heavy random I/O workloads compared to the S750.
• Crucial MX500: represents the performance ceiling for the SATA interface; uses a dedicated DRAM cache and offers superior consistency in heavy random I/O workloads compared to the S750.