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HPE 801557-001 4TB 7.2K-RPM SAS 12Gb/s LFF 3.5 HDD with Tray
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HPE 801557-001 4TB 7.2K-RPM SAS 12Gb/s LFF 3.5 HDD with Tray
- 4TB High-Capacity Storage
- 7,200 RPM Spindle Speed
- SAS 12Gb/s Interface (1.2 GBps Transfer Rate)
- 3.5" LFF Form Factor with MSA Hot-Plug Tray
- 256MB Cache Buffer for Performance
- Genuine HPE MSA2 Drive with Interposer Connector
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AED 1197.00 Incl. Vat
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HPE 801557-001 4TB 7.2K-RPM SAS 12Gb/s LFF Hard Drive
The HPE 801557-001 (Option Part: K2Q82A / Assembly: 807582-002 / Model: HUS726T4TAL5204) is a genuine 4TB SAS Midline hard drive built specifically for HPE MSA2 storage environments where cost-per-gigabyte and dependable performance are essential. Spinning at 7,200 RPM with a 256MB DDR3 cache buffer and an average latency of 4.2ms, it's engineered to support data storage, backup, and mid-range workload applications with a balanced approach to speed and economy. The 12Gb/s SAS interface provides a stable, high-throughput connection with a data transfer rate of 1.2 GBps, which is exactly what MSA storage arrays are built around.
What sets this drive apart is its unique MSA2 hot-plug tray with an interposer connector that is different from standard ProLiant drives. HPE MSA2 controller enclosures and large form factor expansion enclosures accept unique HPE SAS disk drive modules with different firmware and different trays than other HPE storage arrays and ProLiant servers. The disk drives have SAS interposers attached to the back which convert the native dual-port SAS interface to an SCA-40 connector, acting as a signal filter and port relocator to connect to the MSA2's proprietary backplane. The drive features dual-port SAS connectivity for built-in redundancy and is hot-swappable, meaning it can be replaced without shutting down the system — minimizing downtime during maintenance.
Because this is a genuine HPE component rather than a generic or rebadged drive, it carries original HPE MSA firmware and a genuine HPE serial number. That matters when you're replacing a drive in a live MSA storage array — mismatched or unverified parts can cause array dropouts or degraded performance.
Specifications of HPE 801557-001 SAS Hard Drive
General Information
Technical Information
Interfaces/Ports
Physical Characteristics
Miscellaneous
Compatibility Guide for HPE 801557-001 SAS Hard Drive
This HPE 801557-001 4TB SAS hard drive is built specifically for HPE MSA2 storage architecture with a unique hot-plug tray and interposer connector that is different from standard ProLiant drives. It is designed for the following MSA storage systems. Before ordering, it's worth double-checking your exact array model and backplane revision.
HPE MSA Storage Arrays:
- HPE MSA 1040 SAN Storage Array
- HPE MSA 2040 SAN Storage Array
- HPE MSA 2050 SAN Storage Array
- HPE MSA 2052 SAN Storage Array
- HPE MSA 2000 / MSA2000i SAN Storage Arrays
- HPE P2000 G3 SAN Storage Arrays
Compatibility Notes:
- For use with MSA 1040/2040/2050/2000/P2000 storage arrays with MSA2 firmware
- Not recommended for ProLiant servers without the correct interposer tray
- Not for use with 6Gb/s SAS backplanes — this is a 12Gb/s drive
- Dual-port design supports redundant paths in compatible systems
- If unsure about compatibility, contact us for a free verification check
Why Buy the HPE 801557-001 4TB SAS Hard Drive?
When you're sourcing a replacement drive for an active MSA storage array, the difference between a genuine part and an unverified clone shows up the first time you need to rebuild a RAID set. The HPE 801557-001 is HPE-manufactured with MSA2-optimized firmware, a 256MB DDR3 cache buffer, a 2 million hour MTBF, a genuine HPE security sticker, and the unique MSA hot-plug tray and interposer connector included. This means it carries the firmware and mechanical tolerances your MSA controller already expects — no compatibility guesswork, no risk of a failed rebuild because of a mismatched drive. Here's what makes this HPE 801557-001 4TB SAS hard drive worth choosing over a cheaper, unverified alternative:
- Genuine HPE MSA2 Part with Security Sticker
- Massive 4TB Capacity for Bulk Storage
- Reliable 12Gb/s Throughput (1.2 GBps)
- 256MB DDR3 Cache for Better Performance
- MSA Hot-Plug Tray & Interposer Included
- Dual-Port Redundancy for High Availability
- 1-Year Limited Warranty
Where to Use the HPE 801557-001 4TB SAS Hard Drive
This HPE 801557-001 4TB SAS hard drive fits teams maintaining MSA storage infrastructure who need dependable, high-capacity storage without downtime. Common deployment scenarios include:
- HPE MSA 1040/2040/2050 SAN Storage Arrays
- HPE P2000 G3 Storage Systems
- Enterprise Data Centers Requiring High-Capacity Storage
- Virtualization Platforms Hosting Multiple VMs
- Backup and Archival Solutions
- Content Delivery Networks
Why Choose Us for HPE 801557-001 4TB SAS Hard Drive
We are a trusted provider of genuine enterprise storage solutions including the HPE 801557-001 4TB SAS hard drive, with a focus on quality, compatibility, and customer satisfaction.
- 100% Genuine HPE 801557-001 Parts with Security Sticker
- Free Compatibility Verification for Your MSA Array
- 90-Day Warranty on Refurbished HPE Drives
- Same Day Shipping Available
- 24/7 Expert Technical Support for HPE Hardware
- MSA Hot-Plug Tray & Interposer Included with HPE 801557-001
- Trusted by 500+ Enterprise Customers
- 5-Star Rated Service for HPE Storage Solutions
FAQs
Why should I buy the HPE 801557-001 from you instead of a cheaper generic drive?
You get a genuine HPE MSA2-optimized drive with the correct hot-plug tray and interposer connector your MSA array requires. Generic drives cause array dropouts — we back ours with a 90-day warranty and free compatibility check.
Is the HPE 801557-001 compatible with my MSA 1040, 2040, or 2050 array?
Yes, it's fully validated for MSA 1040, 2040, 2050, 2000, and P2000 SAN arrays with MSA2 firmware. Our free compatibility check confirms your exact array model and firmware before you order.
What if the HPE 801557-001 doesn't work in my MSA storage array?
We stand behind every drive. Our 24/7 support team is ready to help, and our 90-day warranty covers free returns and replacements with no questions asked — your investment is fully protected.