PNY CS1031 1000GB

The PNY CS1031 is an entry-level NVMe SSD built on a DRAM-less architecture that uses Host Memory Buffer (HMB) to reduce latency from the lack of onboard cache. It typically employs a 4-channel controller (commonly Phison PS5013-E13T or a Silicon Motion equivalent) paired with high-density 3D NAND, operates over PCIe 3.0 x4, and relies on pseudo-SLC (pSLC) caching to sustain burst speeds around 2400 MB/s. The model is known to use variable components across production batches and is oriented toward read-heavy consumer workloads rather than write-intensive tasks.

Key Specifications

• Interface: PCIe Gen 3.0 x4 (NVMe 1.3)
• Sequential R/W: 2400 MB/s Read / 1750 MB/s Write
• Controller: Variable (commonly Phison PS5013-E13T or SM2263XT)
• Controller channels: Typically 4-channel
• NAND Type: 3D NAND (variable TLC or QLC depending on revision)
• Architecture: DRAM-less with HMB (Host Memory Buffer) support
• Cache: pseudo-SLC (pSLC) caching for burst performance
• TBW (1TB): ~240 TBW (Total Bytes Written)
• Form Factor: Single-sided M.2 2280

Hardware Alternatives

• Kingston NV1 / Kingston NV2 1000GB: Closest market equivalents in terms of performance strategy, sharing the same philosophy of variable internal hardware and fluctuating between TLC and QLC NAND based on production batches.
• Crucial P3 1000GB: A direct competitor often utilizing QLC NAND; shares similar limitations regarding sustained write performance and endurance.
• TeamGroup MP33: Often shares the same Phison E13T controller found in many CS1031 units, offering a nearly identical technical profile and thermal behavior.