Samsung PM9A1 256GB NVMe SSD

Samsung PM9A1 256GB NVMe SSD (MZVL2256HCHQ-00B00).

Technical Specifications: Samsung PM9A1 256GB

1. Basic Information

• Manufacturer: Samsung Electronics

• Series: PM9A1 (OEM Version of Samsung 980 PRO)

• Part Number (P/N): MZVL2256HCHQ-00B00

• Capacity: 256 GB

• Form Factor: M.2 2280 (80mm x 22mm)

2. Interface & Protocol

• Interface: PCIe Gen 4.0 x4

• Protocol: NVMe 1.3 / NVMe 1.4

• Backward Compatibility: Fully compatible with PCIe Gen 3.0 x4 slots (runs at Gen 3 speeds)

3. Controller & Flash Memory

• Controller: Samsung Elpis Controller (S4LV003)

• NAND Flash Type: Samsung V-NAND 6th Gen (128-Layer) 3D TLC

• DRAM Cache: 512 MB LPDDR4

4. Performance Specifications

• Sequential Read Speed: Up to 6,400 MB/s

• Sequential Write Speed: Up to 2,700 MB/s

• Random Read (4KB, QD32): Up to 500,000 IOPS

• Random Write (4KB, QD32): Up to 600,000 IOPS

5. Reliability & Power

• TBW (Total Bytes Written): 150 TBW

• MTBF (Mean Time Between Failures): 1,500,000 hours

• Operating Voltage: 3.3V ± 5%

• Active Power Consumption: ~5W – 8W (Max)

• Idle Power Consumption: < 35 mW (L1.2 Low Power Mode < 5 mW)

6. Environmental & Mechanical Parameters

• Operating Temperature: 0°C to 70°C (32°F to 158°F)

• Storage Temperature: -40°C to 85°C (-40°F to 185°F)

• Dimensions: 80.15 x 22.15 x 2.38 mm

• Weight: Max 9.0 g