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HPE 500GB 655708-B21 2.5-inch SFF SATA 6Gb/s 7.2K RPM Hot Plug Hard Drive (655708-B21)
Key Features
Brand: HPE
HP 500GB 2.5-inch SFF SATA 6Gb/s 7.2K RPM
Midline (MDL) Hot-Plug Hard Drive
in G8 G9 (Gen8 Gen9) SmartDrive Carrier (SC) (as pictured)
Genuine HP serial number and firmware
Genuine HP Certified Hard Drive
1 Year Warranty
HPE 655708-B21 500GB SATA 2.5 Inch Hard Disk Drive Review: Reliable Storage
The HPE 655708-B21 500Gigabyte SATA 6Gbps 7.2K RPM Small Form Factor SmartCarrier Midline Hard Disk Drive delivers an optimized combination of cost-effective data density and reliable computing performance. Engineered specifically for enterprise ProLiant server environments, this internal multi-user hard drive provides a dependable structural foundation for secondary storage, cold-data pools, and localized server boot tasks.
Executive Overview and Premium Design Philosophy
The HPE 655708-B21 midline hard drive represents a standard in scalable secondary storage for expanding corporate computing infrastructure. It transitions organizational networks from volatile consumer electronics to a fully validated enterprise storage ecosystem. Designed for deployment in high-density ProLiant rack mainframes, branch office backup arrays, and distributed edge storage configurations, this original equipment component safeguards critical workspace applications from unexpected mechanical breakdowns.
Engineered for Elite Professional Workflows
Continuous system availability is an absolute requirement for modern corporate tasks. The 655708-B21 satisfies this necessity by delivering highly regulated electrical data transmission paths over an industry-standard Serial ATA interface. IT departments can execute steady localized file transfers, manage operating system boot routines, and compile routine diagnostic logging pools simultaneously without bottlenecking host controller lines, sustaining business storage efficiency around the clock.
Structural Integrity and SmartCarrier Performance
Featuring a factory-fit hot-swap SmartCarrier retention frame, this unit is engineered to match the mechanical rail slots of Gen8 and Gen9 server configurations. The integrated metallic carrier cage protects the internal drive chassis from twisting forces during installation. Unlike legacy drive brackets, this premium original equipment tray features precision alignment tracks and a reinforced spring-action locking lever that isolates the spinning platters from adjacent server vibrations, maintaining drive calibration and tracking longevity.
Key Technical Specifications
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- Manufacturer Option Part Number: 655708-B21
- Formatted Data Capacity: 500 Gigabytes of raw storage space
- Spindle Rotational Speed: 7200 Revolutions per minute operational rate
- Hardware Interface Standard: 6 Gigabits per second Serial ATA III
- Physical Drive Form Factor: 2.5 Inch Small Form Factor configuration
- Deployment Class Status: Midline (MDL) enterprise Nearline reliability tier
- Carrier Attachment Assembly: Integrated HPE SmartCarrier (SC) diagnostic frame
- Sector Architecture Profile: Standard Native 512n physical layout structure
- Alternative Part Configurations: 656107-001 and MM0500FBFVR
Top Benefits of the HPE 500GB Midline SATA SC Drive
Cost-Efficient Midline Data Storage Tiering
The Midline engineering profile balances raw data volume with an affordable procurement price point. This performance optimization allows data center administrators to configure dense secondary backup pools and operating system boot arrays cost-effectively, preserving premium high-speed solid-state resources for intense transactional user applications.
Professional High-Speed 6Gbps SATA Data Pipeline
The generation three Serial ATA interface delivers a stable 6 Gigabits per second data transfer rate threshold. This advanced throughput capacity enables the storage drive to communicate with host bus adapters and hardware smart array controllers smoothly, speeding up initial device discovery paths and server boot operations.
True Hot-Swappable Hot-Plug Operational Safety
Engineered to operate inside critical enterprise equipment configurations, this hard drive package fully supports real-time hot-plug mechanical replacements. System technicians can extract a degraded drive module from a live mirror array and slide this fresh expansion replacement into place without resetting the operating system or scheduling emergency work windows.
SmartCarrier Diagnostic Interface Ecosystem
The pre-installed SmartCarrier framework features a circular diagnostic status display that feeds live telemetry directly to field technicians. This digital visual anchor clearly communicates drive activity, alerts against accidental removal while a drive is active, and flashes specific amber patterns during fault states to accelerate maintenance tasks.
Server Storage Form Factor Allocation Matrix
| Chassis Drive Configuration | Compatibility Validation | Mounting Frame Requirement |
|---|---|---|
| 2.5 Inch Small Form Factor Bay | Fully Compatible | SmartCarrier Slides Directly into Gen8 or Gen9 Slots |
| 3.5 Inch Large Form Factor Bay | Partially Compatible | Requires 2.5 Inch to 3.5 Inch Hybrid Adapter SmartCarrier Frame |
Step-by-Step Server Hardware Installation Instructions
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- Identify Target Storage Slot: Check your running storage controller dashboard or server front panel to identify an empty or failed drive slot.
- Open Carrier Security Latch: Press the integrated plastic release button on the front of the SmartCarrier to snap the vertical locking lever open.
- Slide Drive Into Server Bay: Guide the carrier firmly into the open server bay channel until the internal SATA port clicks securely into the backplane midplane.
- Lock the Front Security Handle: Push the vertical caddy handle flush against the server bezel until the front mechanical clip snaps into a secured position.
- Verify Initialization Status: Observe the integrated circular status LEDs to confirm the green activity light illuminates, indicating successful system integration.
Frequently Asked Questions
Will this SmartCarrier tray fit inside an older ProLiant Gen7 or newer Gen10 server?
No. HPE utilizes completely different hot-swap carrier tray layouts depending on your specific ProLiant server generation. Gen8 and Gen9 systems rely on this specific HPE SmartCarrier (SC) layout featuring circular diagnostic LED matrices, whereas older Gen7 models use legacy wide-latch metal frames, and newer Gen10 Plus or Gen11 platforms utilize Basic Carrier configurationS
Can this SATA drive be connected directly to a server SAS backplane slot?
Yes. Industry-standard Serial Attached SCSI (SAS) server backplanes and smart array storage controllers are built with backward-compatible physical wiring paths that read and process standard single-port SATA drives natively. However, standard SATA motherboard ports found on desktop computers cannot read enterprise SAS drives.
What is the primary workload recommendation for this 7.2K Midline drive?
This drive is optimized for workloads with less than a forty percent total operational input-output cycle load. This includes roles such as acting as an operating system boot pool, holding local file configurations, archiving background server diagnostic logs, or functioning as a secondary target shelf inside a continuous backup rotation scheme.
