Samsung PM863a 1.9TB 2.5" SATA-3 Enterprise Class SSD

  • Built for read-intensive enterprise applications
  • Built for sustained performance with strong IOPS consistency.
  • Tantalum capacitors for power loss protection.
  • Low latency and high quality of service (QoS).

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Mfr part code: MZ7LM1T9HMJP-00005

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    Samsung PM863a 1.9TB 2.5" SATA-3 Enterprise Class SSD Product Description

    Samsung's PM863a SSDs feature V-NAND technology and are built from Samsung components. They are designed to deliver exceptional around the clock performance for your Data Center and Server data storage needs, focused on read-intensive applications such as streaming services, content delivery networks, web servers and cloud services.

    V-NAND Technology
    Samsung's V-NAND flash memory helps to overcome the limitations of conventional planar NAND architecture. It stacks 48 cell layers vertically over one another rather than trying to fit itself onto a fixed horizontal space, in order to provide high density and performance with a small footprint.

    Sustained Performance
    Built to handle the 24/7 operation and heavier workloads of data center usage, the PM863a delivers an exceptionally high level of sustained performance and consistent low latency over the life of the SSD to meet the demands for increasing data handling.

    IOPS Consistency
    When combined in RAID configurations with multiple drives, small variations are multiplied and lead to significant effects on performance. The PM863a delivers an exceptional level of performance above 99% in random read, as well as superior performance in random write.

    Outstanding Reliability
    The PM863a is optimized for server and data center environments by offering reinforced endurance, enterprise-grade power-loss protection thanks to tantalum capacitors, low power consumption and a 3-year limited warranty.

    Latency and QoS
    The PM863a offers extremely low latency and a high level of Quality of Service (QoS), which are both essential for data center and cloud server applications.

    Advanced ECC Engine and End-to-End Data Protection
    Detect signal discrepancies and proactively remedy them in real time with the Error Correcting Code (ECC) engine.

    Power-Loss Protection
    Protect data integrity from unexpected power loss with Samsung's advanced power-loss protection architecture. Using the electricity from a tantalum capacitor to provide enough time to transfer the cached data in the DRAM to the flash memory, you can be assured no loss of data.

    Monitor the computer drives proactively to detect and report various reliability indicators with Self-Monitoring, Analysis and Reporting Technology (S.M.A.R.T).

    Dynamic Thermal Guard Protection
    Safeguard the SSD from overheating by automatically controlling the speed of the CPU relative to its core temperature, by throttling back the performance to prevent thermal shutdown.


    Capacity 1.92TB
    Edition PM863a
    Form Factor 2.5"
    Height 7 mm
    Interface SATA III - 6Gb/s
    Host Controller Interface AHCI
    Controller Mercury
    Flash Memory Type 3-bit MLC V-NAND
    Max. Read 520 MB/s
    Max. Write 480 MB/s
    DRAM Cache Memory N/A
    DRAM Cache Memory Type  
    Max. Random Read 4K 97,000 IOPS
    Max. Random Write 4K 24,000 IOPS
    Latency 130
    Special Features
    • AES 256-bit Encryption Support
    • Deterministic TRIM Support
    • RAID Support
    • UBER: <1 sector per 10^17 bits read
    Power Consumption (active) 4
    Max. Endurance Rating 2,733 TBW
    MTBF 2,000,000 hours
    Max. Operating Vibration 20G, 10 ~ 2,000 Hz, Sinusoidal. 2.17Grms, 7~800Hz, Random
    Max. Non-operating Vibration 20G, 10 ~ 2,000 Hz, Sinusoidal. 2.17Grms, 7~800Hz, Random
    Max. Operating Shock 1500 G, duration 0.5 ms, Half Sine Wave
    Max. Non-operating Shock  to top

    Add-ons and Accessories


    £4.98 inc. vat
    £5.36save £0.38
    £4.15 ex. vat
    £4.46save £0.31
    £7.38 inc. vat
    £6.15 ex. vat

    Technical Specifications


    Device Type Solid state drive - internal
    Capacity 1920 GB
    Form Factor 2.5"
    Interface SATA 6Gb/s
    Width 70 mm
    Depth 100 mm
    Height 7 mm
    Weight 60 g


    Drive Writes Per Day (DWPD) 0.8
    Drive Transfer Rate 600 MBps (external)
    Internal Data Rate 540 MBps (read) / 480 MBps (write)
    4KB Random Read 99000 IOPS
    4KB Random Write 18000 IOPS


    MTBF 2,000,000 hours
    Non-Recoverable Errors 1 per 10^17

    Expansion & Connectivity

    Interfaces 1 x SATA 6 Gb/s - 7 pin Serial ATA
    Compatible Bay 2.5"

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