What performance metrics does the HPE 632494-B21 deliver?

The drive delivers 40,000 random read IOPS, 14,500 random write IOPS, 415MB/s sequential read speed, and 180MB/s sequential write speed. External data transfer rate is 6Gbps via SAS interface. These specifications make it suitable for transactional workloads and virtualization requiring consistent sub-millisecond latency.

Which HPE ProLiant servers support this SSD?

The 632494-B21 is compatible with HPE ProLiant BL and DL series from Generation 4 through Generation 7, including BL460c, BL465c, DL360, DL380, DL385, and DL580 models. It also works with HPE Synergy platforms and X-series storage systems (X1500, X1800, X3400, X3800 Gen2).

What type of NAND flash does this drive use?

The 632494-B21 uses single-level cell (SLC) NAND flash technology, which provides superior endurance, reliability, and performance compared to multi-level cell (MLC) or triple-level cell (TLC) alternatives. SLC is preferred for enterprise environments requiring maximum write cycles and data integrity.

Is this drive hot-swappable?

Yes, the 632494-B21 is a hot-pluggable drive with a standard carrier, allowing replacement without powering down the server. This enables non-disruptive maintenance and reduces downtime in production environments.

What is the power consumption of this SSD?

The drive consumes 9 watts during operation, significantly lower than 15K RPM SAS hard drives (typically 12-15 watts). This reduces data center power consumption and cooling requirements, lowering total cost of ownership over the drive's operational lifetime.

Does HPE provide drive health monitoring for this SSD?

Yes, the 632494-B21 is compatible with HPE SmartSSD Wear Gauge, which integrates with HPE management tools to monitor SSD health, remaining lifespan, and wear levels. This enables proactive replacement planning and prevents unexpected drive failures.

632494-B21 - HPE 632494-B21 400GB SAS-6Gbps SLC Enterprise SSD

Name: HPE 632494-B21 400GB SAS-6Gbps SLC Enterprise SSD
Brand: HP
SKU: 632494-B21
Price: 445 USD
Availability: InStock

632494-B21 - HPE 632494-B21 400GB SAS-6Gbps SLC Enterprise SSD | US IT Hardware

Product overview

The HPE 632494-B21 is a 400GB enterprise-class solid-state drive designed for high-performance data center environments. Featuring a 2.5-inch small form factor with SAS-6Gbps interface, this drive delivers 40,000 random read IOPS and 415MB/s sequential read throughput, significantly outperforming traditional rotating media. Built with single-level cell (SLC) NAND flash technology, it provides exceptional endurance and reliability for mission-critical applications. The drive is hot-swappable and compatible with HPE ProLiant rack, tower, and blade servers from Generation 4 through Generation 7, as well as HPE Synergy platforms. With 9-watt power consumption and SmartSSD Wear Gauge compatibility, it reduces operational costs while enabling proactive drive health monitoring. Ideal for transactional databases, virtualization, and high-IOPS workloads requiring enterprise-grade performance and availability.

400GB capacity with SAS-6Gbps interface.
40,000 random read IOPS and 415MB/s sequential throughput.
Single-level cell (SLC) NAND for enterprise endurance.
Hot-swappable 2.5-inch form factor with standard carrier.
9-watt power consumption reduces data center cooling costs.
Compatible with HPE ProLiant Gen4-Gen7 and Synergy platforms.

Expedited and overnight shipping options are available at checkout, priced by destination and service.
Purchase orders accepted from qualified institutions.
Refunds within 14 days and replacements within 30 days of delivery with an RMA (25% restocking fee on customer-initiated returns), and every part carries our Standard 30-Day Warranty - see our return policy or contact US IT Hardware.

Featuring

Manufacturer part #	632494-B21
Brand	HP
Condition	Refurbished
UPC Code	885631906521
Model Name	EO0400FBRWA
Device Type	Solid State Drive - Hot-Swap
Product Line	Enterprise Performance SSD
Product Type	Solid State Drive - Hot-Swap Enterprise SSD
Workload Type	Enterprise Performance
Assembly Number	632429-003
Platform Support	HPE ProLiant Rack/Tower/BladeSystem Servers, HPE Synergy

Compatible systems

The HPE 632494-B21 is fully compatible with HPE ProLiant servers (Gen4-Gen7) and Synergy platforms featuring 2.5-inch SFF drive bays with SAS-6Gbps controllers. It integrates with standard HPE management tools for drive health monitoring via SmartSSD Wear Gauge. No special drivers or firmware updates required for supported server generations.

HPE ProLiant BL Series
Model: BL20p, BL45p, BL460c, BL465c, BL480c, BL620c, BL680c, BL685c, WS460c
Form factor: 2.5-inch SFF hot-swap
Generation: Gen2-Gen7
Blade servers with SAS backplane support
HPE ProLiant DL Series
Model: DL120, DL160, DL160se, DL165, DL170e, DL170h, DL180, DL320, DL360, DL365, DL370, DL380, DL580, DL585, DL785
Form factor: 2.5-inch SFF hot-swap
Generation: Gen3-Gen7
Rack-mount servers with 2.5-inch drive bays
HPE ProLiant DL1000
Model: DL1000
Form factor: 2.5-inch SFF hot-swap
Generation: All
High-density multi-node server
HPE Storage Systems
Model: X1500, X1800, X3400, X3800, X16000
Form factor: 2.5-inch SFF
Generation: Gen2
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SAS Enterprise SSDs 400GB Enterprise SSDs HP Enterprise SSDs 2.5-inch Enterprise SSDs

Spare Part Number	632630-001

Storage System Compatibility	X1500 (Gen2), X1800 (Gen2), X3400 (Gen2), X3800 (Gen2), X16000 (Gen2)

SmartSSD Wear Gauge Compatible	Yes

ProLiant BL Series Compatibility	BL20p (Gen4), BL45p (Gen2), BL460c (Gen6-Gen7), BL465c (Gen1-Gen7), BL480c, BL620c (Gen7), BL680c (Gen5-Gen7), BL685c (Gen6-Gen7), WS460c (Gen6-Gen7)

ProLiant DL Series Compatibility	DL1000, DL120 (Gen6-Gen7), DL160 (Gen6-Gen7), DL160se (Gen6-Gen7), DL165 (Gen6-Gen7), DL170e (Gen6-Gen7), DL170h (Gen6-Gen7), DL180 (Gen6-Gen7), DL320 (Gen6-Gen7), DL360 (Gen4p-Gen7), DL365 (Gen1-Gen7), DL370 (Gen6-Gen7), DL380 (Gen4-Gen7), DL385 (Gen1-Gen7), DL580 (Gen3-Gen7), DL585 (Gen2-Gen7), DL785 (Gen6)

Capacity	400GB
NAND Flash Memory Type	Single-Level Cell (SLC)

Sequential Read Speed	415MB/s
Sequential Write Speed	180MB/s
Random Read Performance	40,000 IOPS
Random Write Performance	14,500 IOPS
External Data Transfer Rate	6Gbps

Height	15.00mm
Form Factor	2.5-inch SFF (Small Form Factor)
Carrier Type	Standard Carrier
Compatible Bay	2.5-inch SFF

Interface	SAS-6Gbps (Serial Attached SCSI)
Plug Type	Hot-Pluggable

HPE 632494-B21 400GB SAS-6Gbps SLC Enterprise SSD

Product overview

Featuring

Compatible systems

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Details

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Customer reviews

Storage

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Power Consumption

Physical Characteristics

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HPE 632494-B21 400GB SAS-6Gbps SLC Enterprise SSD

Product overview

Featuring

Compatible systems

Best for

Details

Shipping, warranty & returns

Customer reviews

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Storage

Network & Communication

Power Consumption

Physical Characteristics

Interface/Ports

Frequently asked questions