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Samsung PM981a 256GB Client SSD
MZVLB256HAHQ-00000
Enterprise stock · tested · export documentation available
Product Overview
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Manufacturer: Samsung Electronics Co., Ltd.
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Product Line: Client SSD / OEM Series
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Model Name: PM981a
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Part Number (P/N): MZVLB256HAHQ-00000
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Market Position: High-performance OEM NVMe SSD (Client / PC Edition equivalent to Retail 970 EVO Plus)
Technical Specifications
| Specification Item | Details |
| Capacity | 256 GB |
| Form Factor | M.2 2280 (80mm x 22mm) |
| Interface | PCIe Gen 3.0 x4, NVMe 1.3 |
| Controller | Samsung Phoenix Controller (S4LR020) |
| NAND Flash Memory | Samsung 96-Layer 3D V-NAND TLC |
| DRAM Cache | 512 MB LPDDR4 |
| Operating Voltage | DC +3.3V ±5% |
| Rated Current | 2.8 A |
Performance Metrics
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Sequential Read Speed: Up to 3,000 MB/s
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Sequential Write Speed: Up to 1,300 MB/s
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Random Read (4KB, QD32): Up to 200,000 IOPS
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Random Write (4KB, QD32): Up to 320,000 IOPS
Physical & Reliability Features
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Endurance (TBW): 150 TBW (Total Bytes Written)
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MTBF (Mean Time Between Failures): 1.5 Million Hours
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Smart Thermal Guard: Dynamic Thermal Guard (DTG) protection to prevent overheating
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Security & Encryption: AES 256-bit Full Disk Encryption (TCG Pyrite supported)
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S.M.A.R.T Support: Supported
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TRIM Support: Supported
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