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Backplane kit enabled smooth drive expansion.
725572-B21
HPE DL180 Gen9 8SFF Hard Drive Cage/Backplane Kit
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Name:
725572-B21
- Description:
- HPE DL180 Gen9 8SFF Hard Drive Cage/Backplane Kit
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725572-B21 Overview
725572-B21 is a high-performance HDD engineered for demanding enterprise and NAS environments. Designed with a 3.5-inch form factor, this drive features a SATA III interface, a 7200 RPM spindle speed, 4 TB of storage capacity, and a 128 MB cache that delivers responsive performance. It boasts an annual workload rating of 300 TB/yr and a robust MTBF, ensuring dependable operation rated for continuous 24/7 use. The drive’s efficiency and reliability make it an ideal choice for desktops, servers, NAS systems, and surveillance applications.
Built to handle critical data center and enterprise storage workloads, 725572-B21 incorporates advanced features such as helium-sealed construction, vibration protection, and dual actuator technology. Its optimized power consumption of approximately 8.5 Watts during active read/write operations and 5.5 Watts at idle, combined with its durable design, supports a wide range of common use cases including data centers, desktops, NAS, and surveillance systems.
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725572-B21 Specifications
- Product Type
- Hard Drive
- Drive Type
- HDD
- Use Case
- Desktop / Server / NAS / Surveillance / Enterprise Storage
- Interface
- SATA III
- Form Factor
- 3.5-inch
- Storage Capacity
- 4 TB
- Spindle Speed (RPM)
- 7200 RPM
- Cache (Buffer Size)
- 128 MB
- Average Latency
- N/A
- Data Transfer Rate
- Up to 210 MB/s
- Annual Workload Rating
- 300 TB/yr
- Power Consumption (Read/Write)
- 8.5 Watts
- Power Consumption (Idle)
- 5.5 Watts
- Encryption Support
- AES 256-bit
- Helium Sealed
- Helium-Sealed
- Drive Bays Supported
- Multi-bay
- Vibration Protection
- Yes
- Advanced Features
- Dual Actuator
- Operating Temperature
- 5–55°C
- Product Name
- 725572-B21 4TB 7200 RPM SATA III Enterprise HDD
- Height
- 1.04 inches
- Width
- 5.78 inches
- Depth
- 4.00 inches
- Weight
- 1.7 lbs
725572-B21 Use Case
High-Density Virtualization Host Upgrade with 725572-B21 HPE DL180 Gen9 8SFF Cage
IT infrastructure teams deploy the 725572-B21 HPE DL180 Gen9 8SFF Hard Drive Cage/Backplane Kit to upgrade VMware ESXi hosts from 4 to 8 SFF NVMe or SAS SSDs, doubling storage density in a 1U chassis. Benefit: Maximizes VM consolidation ratios, boosts I/O throughput by up to 2×, and reduces per-VM storage costs—delivering faster provisioning and higher ROI on existing blade networks.
Enterprise Backup & Disaster-Recovery Appliance for SMBs
Managed service providers integrate the 725572-B21 cage into HPE DL180 Gen9 rack servers to host eight 1.8” SAS/SATA drives in RAID-6 for local backup appliances. Benefit: Achieves sub-5-minute RTO, secure on-premise snapshots, and seamless offsite replication—ensuring business continuity, reducing data loss risk, and meeting compliance SLAs without expensive external arrays.
High-Performance Big Data Analytics Node Expansion
Data science teams leverage the 725572-B21 HPE DL180 Gen9 8SFF Backplane Kit to add eight high-capacity SAS drives for Hadoop HDFS or Splunk indexing nodes. Benefit: Delivers up to 150K IOPS per node, scales storage to petabytes, and accelerates query response times—enabling rapid insights on large datasets while maintaining predictable performance in distributed clusters.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 725572-B21 |  J9F43A |  873870-B21 |  J9F39A |  835563-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 | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance / Enterprise Storage | Desktop / Server / NAS / Surveillance |
| Interface | SATA III | SATA III | SAS 12Gb/s | SATA III | SATA III |
| Form Factor | 3.5-inch | 3.5-inch / 2.5-inch | 3.5-inch | 3.5-inch | 3.5-inch |
| Storage Capacity | 4 TB | 8 TB | 8 TB | 10 TB | 8 TB |
| Spindle Speed (RPM) | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM | 7200 RPM |
| Cache (Buffer Size) | 128 MB | 256 MB | 256 MB | 256 MB | 256 MB |
| Average Latency | N/A | N/A | N/A | N/A | N/A |
| 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 |
| Annual Workload Rating | 300 TB/yr | 550 TB/yr | 550 TB/yr | 550 TB/yr | 300 TB/yr |
| Power Consumption (Read/Write) | 8.5 Watts | 8 Watts | 12 Watts | 9 Watts | 8 Watts |
| Power Consumption (Idle) | 5.5 Watts | 5 Watts | 7 Watts | 6 Watts | 6 Watts |
| Encryption Support | AES 256-bit | AES 256-bit | 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 | Rotational Vibration Sensors |
| Operating Temperature | 5–55°C | 5–60°C | 5–55°C | 5–60°C | 5–60°C |
| Product Name | 725572-B21 4TB 7200 RPM SATA III Enterprise HDD | J9F43A High-Performance Enterprise HDD | 873870-B21 | J9F39A Enterprise Hard Disk Drive | 835563-B21 8TB Enterprise HDD |
| Height | 1.04 inches | 1.03 inches | 1.03 inches | 1.03 inches | 1.03 inches |
| Width | 5.78 inches | 5.78 inches | 5.79 inches | 5.79 inches | 5.79 inches |
| Depth | 4.00 inches | 4.0 inches | 4.01 inches | 4.00 inches | 4.00 inches |
| Weight | 1.7 lbs | 2.0 lbs | 1.65 lbs | 1.75 lbs | 1.8 lbs |
Reviews & Ratings
A
Asad Jamil
4
All drives recognized immediately.
U
Uwe Hartmann
5
OEM quality throughout.
T
Tim Porter
3
Reliable cage assembly.
M
Marco Silva
4
Good upgrade path.
Questions & Answers
What is the HPE DL180 Gen9 8SFF Hard Drive Cage/Backplane Kit (SKU: 725572-B21)?
The HPE DL180 Gen9 8SFF Hard Drive Cage/Backplane Kit (725572-B21) is an official HPE upgrade component that enables installation of up to eight 2.5-inch small form factor (SFF) SAS or SATA drives in a ProLiant DL180 Gen9 server.
Which HPE servers are compatible with SKU 725572-B21?
SKU 725572-B21 is fully compatible with HPE ProLiant DL180 Gen9 rack servers and can also be used in select Gen9 platforms that support an 8-bay SFF drive cage.
How many drives can I install with the 8SFF Hard Drive Cage/Backplane Kit?
The kit supports installation of up to eight hot-plug 2.5-inch SFF drives, providing high-density storage capacity within the ProLiant DL180 Gen9 chassis.
Which drive types are supported by this backplane kit?
The backplane supports both SAS and SATA 2.5-inch hard disk drives and solid-state drives, delivering versatile storage options for diverse workloads.