HPE 861744-B21 4TB SATA Hard Drive Kit 774026-001 G10 / Appollo Arrays

HEWLETT PACKARD Part #/MPN: 861744-B21

DiscTech Item #: HPI-861744-B21-BN-OE

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Enterprise Grade

Capacity: 4TB

Speed: 7,200RPM

Interface Types: SATA

Form Factor: 3.5inx1.0in LFF Hard Drive

Sector Size: 512 / 512e

Electrical Interface: SATA 600 - 6.0Gbps

Compatible Systems: HP 9th Gen. G9

HPE 861744-B21 / 862135-001 / 861759-004 / 846520-001 / MB4000GVYZA 4TB 3.5-Inch LFF 6Gbps 7.2K RPM 512e Midline LP SATA Hard Drive Kit 774026-001 - Brand New

HPE 861744-B21 / 862135-001 / 861759-004 / 846520-001 / MB4000GVYZA 4TB / 4000GB 3.5” LFF / Large Form Factor 6.0 Gb/s 7200 RPM 512e / 512 Emulation Midline LP / Low Profile SATA / Serial ATA HDD / Hard Drive Kit 774026-001 for Gen 10 Servers and Apollo Arrays - Brand New

Alt Model#: 862135-001, 861759-004, 846520-001, MB4000GVYZA

HPE Hard Disk Drives (HDDs) are engineered to deliver optimum performance, reliability, compatibility, and data security across HPE server and storage platforms making them the preferred choice for workloads ranging from small businesses to large enterprise.


  • HPE HDDs are tuned and tested with on-going quality monitoring throughout their lifecycle
  • HPE optimizes HDD firmware for predictable and consistent HDD performance
  • Full portfolio of high-performance Mission Critical and high-capacity Business Critical drive solutions
  • HPE’s industry-leading rigorous testing and qualification program, backed by 2.4 million test hours
  • Pre-failure Alerts with HPE Smart Array Controller, Systems Insight Manager, and HPE Smart firmware
  • 3x faster firmware and software updates with HPE Service Pack for ProLiant (HPE SPP)
  • Best-in-class supply assurance program reduces downtime due to product delays
  • Simplify HDD planning and standardize HDDs across HPE server and storage solutions
  • Common HDD carriers mean re-purposing drives in other servers is a snap
  • HPE Digitally Signed Firmware helps prevent against malicious attacks
  • HPE Smart Array SR Secure Encryption is a FIPS 140-2 Level 1 validated enterprise class controller-based encryption solution for data-at-rest on all SAS/SATA drives
  • HPE Smart Carriers report drive activity and health HPE HDDs are available for three types of workloads: Enterprise high-performance Mission Critical, Midline high-capacity Business Critical, and Entry-level storage solutions

Digitally Signed Firmware – Prevent unauthorized access to your data with the expansion of integrated HPE Digitally Signed Firmware (DS) on new drives; providing the security and assurance that drive firmware comes from a trusted source and protects against malicious attacks

For advanced data protection and encryption, customers should consider HPE Smart Array Controllers with HPE Smart Array Secure SR Encryption. It is a controller-based data encryption solution for HPE servers that protect data-at-rest on any bulk attached storage. This solution meets stringent compliance regulations such as HIPAA and Sarbanes-Oxley.

This Drive is compatible with the following HP systems:

  • Proliant ML350 Gen10, DL325 Gen10, DL360 Gen10, ML110 Gen10, DL380 Gen10, DL385 Gen10, ML580 Gen10, DL560 Gen10
  • Apollo 4200 Gen9, 4510 Gen9
  • StoreEasy 1650 Gen9

HPE Low Profile carrier known as HP Gen 10 tray


This Drive is compatible with the following HP Proliant systems:

Proliant ML350 Gen10 Gen 10Proliant DL325 Gen10 Gen 10
Proliant DL360 Gen10 Gen 10Proliant ML110 Gen10 Gen 10
Proliant DL380 Gen10 Gen 10Proliant DL385 Gen10 Gen 10
Proliant ML580 Gen10 Gen 10Proliant DL560 Gen10 Gen 10
Apollo 4200 Gen9 Gen 9Apollo 4510 Gen9 Gen 9

StoreEasy 1650 Gen9 Gen 9

HPE Low Profile carrier known as HP Gen 10 tray

Model Number861744-B21
Alternate Model Number862135-001
DescriptionHPE 4TB 6G SATA 7.2K RPM 3.5-Inch LFF LP 512e Midline Hard Drive
Capacity4TB / 4000GB
UsageHigh capacity, high availability storage:
  • Backup
  • Archive
  • Reference
  • Height1.028 in
    26.1 mm
    Width4.15 in
    105.5 mm
    Depth6.16 in
    156.58 mm
    Form Factor3.5" LFF
    Rotational Speed7200 RPM
    Operating Temperature50° to 95°F
    10° to 35°C
    CarrierLow Profile (LP)
    Seek TimeSingle Track
  • 0.32 ms
  • Average
  • 7.45 ms
  • Full-Stroke
  • 14.2 ms
  • Logical Blocks7,814,037,168

    Click here to view the manufacturer's item description/brochure

    ROHS Compliant

    Alternate MPNs: 862135-001 861759-004 846520-001 MB4000GVYZA

    Weight: 2.5 lb

    Warranty: 1 Year DiscTech

    Brand New

    Condition Levels Explained

    The product is brand new.

    1 Year DiscTech Warranty

    Product Warranties Explained

    The product has a DiscTech warranty for the time period specified. View our limited warranty