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Simple SATA HDD that performs as expected.
801888-B21
4TB SATA 6G 3.5IN N MDL HDD PL=SI
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$731.00
$245.0066.5% off
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801888-B21
4TB SATA 6G 3.5IN N MDL HDD PL=SI
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801888-B21 is a high-performance HDD engineered for enterprise storage environments, featuring a 3.5-inch form factor paired with a SAS 12Gb/s interface and a solid 7200 RPM spindle speed. It offers an 8 TB capacity with a 256 MB cache and a robust annual workload rating of 550 TB/yr, ensuring dependable performance in demanding operating conditions.
801888-B21 is designed with advanced enterprise features including helium sealing for enhanced cooling and reduced turbulence, dedicated vibration protection, and dual actuator technology for improved data accuracy. Optimized for a wide range of applications such as data centers, desktops, NAS, and surveillance systems, it provides reliable operation and energy efficiency with a power consumption of 7 Watts while reading/writing and 5 Watts in idle mode.
801888-B21 price is $245.00, a 66.5% saving from the Hpe list price of $731.00. 801888-B21 is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for 801888-B21 for additional pricing. Browse the full Hpe Server 3.5" Hard Drives series or explore all Hpe products.
Deploy the 801888-B21-4TB SATA 6G 3.5IN N MDL HDD PL=SI in rack-mount servers running VMware vSphere to host high-density virtual machines. This 4 TB enterprise HDD delivers sustained sequential throughput and low latency for rapid VM boot and migrate operations, enabling IT teams to scale virtualization by 50% while reducing storage TCO by 15%.
Integrate the 801888-B21-4TB SATA 6G 3.5IN N MDL HDD PL=SI into NAS-based backup appliances for 30-day retention of critical corporate data. Its high capacity, 24/7 reliability, and enterprise-grade error recovery ensure secure archiving, shrink backup windows by 40%, and meet regulatory compliance at a fraction of tier-1 storage costs.
Equip enterprise NVR systems with the 801888-B21-4TB SATA 6G 3.5IN N MDL HDD PL=SI to store up to 16 HD camera streams for 30 days. The drive’s stable sustained write performance and low power draw guarantee uninterrupted continuous recording, cut drive replacements by 25%, and streamline security operations with scalable, high-density storage.
To get the detailed certification, please go to the Compliance Center.
 801888-B21 |  831725-B21 |  881785-B21 |  N9Y45A |  819201-B21 | |
|---|---|---|---|---|---|
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Server / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Enterprise Storage |
| Interface | SAS 12Gb/s | SAS 12Gb/s | SATA III | SATA III | SAS 12Gb/s |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 8 TB | 10 TB | 4 TB | 10 TB | 12 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 256 MB | 512 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Data Transfer Rate | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Annual Workload Rating | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr | 550 TB/yr |
| Power Consumption (Read/Write) | 7 Watts | 8 Watts | 8 Watts | 9 Watts | 9.0 Watts |
| Power Consumption (Idle) | 5 Watts | 5 Watts | 5 Watts | 5 Watts | 6.0 Watts |
| Encryption Support | AES 256-bit | No | AES 256-bit | AES 256-bit | AES 256-bit |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Operating Temperature | 5–60°C | 5–60°C | 5–60°C | 5–60°C | 5–60°C |
| Product Name | 801888-B21 | 831725-B21 Enterprise SAS HDD | 881785-B21 Enterprise HDD | N9Y45A Enterprise Helium HDD | Seagate Exos Enterprise 12TB 819201-B21 SAS HDD |
| Height | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.79 inches | 5.8 inches | 5.8 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 4 inches | 7.2 inches | 4.02 inches | 4.02 inches |
| Weight | 1.5 lbs | 1.85 lbs | 1.6 lbs | 1.8 lbs | 3.3 lbs |
Simple SATA HDD that performs as expected.
Good for non critical storage needs.
Installed quickly without issues.
Reliable everyday drive.
Quiet and stable.
The 801888-B21 HDD provides 4 TB of raw storage capacity for high-density data applications.
It uses a SATA III interface with 6 Gb/s transfer rates for broad system compatibility.
The drive is a standard 3.5-inch form factor, fitting most desktop and enterprise enclosures.
Yes, the drive is backward-compatible with SATA II (3 Gb/s) and SATA I (1.5 Gb/s) ports.