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826691-B21
DL380 GEN10 BOX1/2 CAGE BKPLN KIT PL=SY
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826691-B21 is a high-performance HDD designed for enterprise environments, offering a robust 3.5-inch form factor with a reliable SATA III interface. It features a 7200 RPM spindle speed, a generous 4 TB storage capacity, and a substantial 256 MB cache, making it ideally suited for data centers and demanding server applications.
826691-B21 is engineered to handle rigorous workloads with a 300 TB/yr annual workload rating and is backed by advanced features such as a helium-sealed design, vibration protection, and dual actuator technology. This drive’s optimized power consumption for both read/write (8 W) and idle (5 W) operations, along with its AES 256-bit encryption support, ensures dependable performance in desktops, NAS systems, surveillance setups, and enterprise storage environments.
826691-B21 price is $289.00, a 25.3% saving from the Hpe list price of $387.00. 826691-B21 is in stock and available for next-day dispatch. (terms applied)
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In enterprise data centers running large clusters of HPE ProLiant DL380 Gen10 servers, technicians install the 826691-B21 half-height cage blanking kit to seal unused slots and enforce front-to-back airflow. This targeted airflow control lowers inlet temperatures by up to 5 °C, aligns with ASHRAE TC 9.9 guidelines, and reduces cooling energy costs by 12%, extending server lifespan and cutting TCO.
In VMware and Hyper-V environments, IT teams fit the 826691-B21 blanking panels into empty I/O bays of DL380 Gen10 servers to eliminate recirculation paths. The precise slot coverage stabilizes internal airflow, prevents thermal throttling under peak loads, and sustains 99.99% application uptime, reducing maintenance overhead by 30% annually.
For remote and edge computing—such as retail kiosks, telecom shelters, and branch offices—engineers deploy the 826691-B21 blanking kit in ProLiant DL380 Gen10 servers to block dust, debris, and unregulated airflow. This preventive measure maintains stable operating temperatures in variable environments, cuts unplanned service calls by 40%, and ensures continuous data processing for IoT and real-time analytics.
To get the detailed certification, please go to the Compliance Center.
 826691-B21 |  J9F39A |  G0M43A |  867972-B21 |  J9F46A | |
|---|---|---|---|---|---|
| Advanced Features | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator | Dual Actuator |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr | 300 TB/yr |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| Cache (Buffer Size) | 256 MB | 256 MB | 256 MB | 128 MB | 256 MB |
| Data Transfer Rate | Up to 210 MB/s | Up to 250 MB/s | Up to 210 MB/s | Up to 250 MB/s | Up to 250 MB/s |
| Depth | 8.1 inches | 4.00 inches | 5.78 inches | 8.27 inches | 4.00 inches |
| Drive Bays Supported | Multi-bay | Multi-bay | Multi-bay | Multi-bay | Multi-bay |
| Drive Type | HDD | HDD | HDD | HDD | HDD |
| Encryption Support | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit | AES 256-bit |
| Form Factor | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Height | 1.0 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Helium Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed | Helium-Sealed |
| Interface | SATA III | SATA III | SATA III | SATA III | SATA III |
| Operating Temperature | 5–60°C | 5–60°C | 5–55°C | 5–55°C | 5–60°C |
| Power Consumption (Idle) | 5 W | 6 Watts | 5.2 Watts | 6 Watts | 4 Watts |
| Power Consumption (Read/Write) | 8 W | 9 Watts | 7.2 Watts | 8 Watts | 8 Watts |
| Product Name | 826691-B21 High Performance Enterprise HDD | J9F39A Enterprise Hard Disk Drive | G0M43A | 867972-B21 Enterprise HDD | J9F46A Enterprise HDD 10TB |
| Product Type | Hard Drive | Hard Drive | Hard Drive | Hard Drive | Hard Drive |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Storage Capacity | 4 TB | 10 TB | 4 TB | 4 TB | 10 TB |
| Use Case | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage |
| Vibration Protection | Yes | Yes | Yes | Yes | Yes |
| Weight | 2.1 lbs | 1.75 lbs | 1.2 lbs | 2.25 lbs | 1.56 lbs |
| Width | 5.8 inches | 5.79 inches | 4.12 inches | 5.79 inches | 5.79 inches |
Backplane kit restored full drive bay functionality.
OEM design ensured perfect compatibility.
Drives detected instantly after install.
Well packaged and easy to mount.
Dependable enterprise component.
The HPE DL380 Gen10 BOX1/2 Cage Backplane Kit (SKU 826691-B21) is an official HPE spare part that adds support for half-height drive bays in ProLiant DL380 Gen10 servers.
The 826691-B21 cage backplane kit is compatible with all HPE ProLiant DL380 Gen10 server variants configured for SFF drive support and factory-shipped without the half-height bay cage.
When installed, the 826691-B21 kit provides four additional half-height SFF drive bays, expanding your server’s internal storage capacity.
Yes, the 826691-B21 cage backplane kit supports both SATA and SAS half-height SFF drives when used with the corresponding server backplane and controller.
