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SAS expander increased storage scalability.
881101-B21
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HPE DL580 Gen10 12G 24-port SAS Expander
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881101-B21
- Description:
- HPE DL580 Gen10 12G 24-port SAS Expander
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881101-B21 Overview
881101-B21-HPE DL580 Gen10 12G 24-port SAS Expander is a high-performance expansion card designed for enterprise storage enhancement. Built as a storage controller type card, it features a PCIe x8 interface utilizing PCIe 3.0 generation technology and incorporates an HPE SAS Expander Controller to deliver efficient 12G SAS connectivity through its 24 dedicated ports. This compact design provides robust bandwidth for high-speed data transfers while ensuring broad operating system compatibility including Windows, Linux, and VMware ESXi.
Engineered to meet the demanding requirements of server expansion, the expander card offers a passive cooling solution paired with a low-profile bracket for seamless integration in dense server environments. Its targeted use case is storage expansion in HPE DL580 Gen10 systems, offering scalable performance and reliability to support critical enterprise applications.
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881101-B21 Specifications
- Weight
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- PCIe Version
- PCIe 3.0
- Product Type
- Expansion Card
- Interface
- PCIe x8
- Supported Ports
- N/A
- Max Data Rate
- N/A
- RAID Levels Supported
- N/A
- Capture Resolution
- N/A
- Capture Frame Rate
- N/A
- Low Profile Bracket
- Yes
- Cooling
- Passive
- Bus Width
- 64-bit
- Power Requirements
- 3.3V
- Use Case
- Storage Expansion
- Card Type
- Storage Controller
- Operating System Compatibility
- Windows / Linux / VMware ESXi
- Chipset / Controller
- HPE SAS Expander Controller
- Port Count
- N/A
- Full Height Bracket
- No
- Product Name
- 881101-B21-HPE DL580 Gen10 12G 24-port SAS Expander
881101-B21 Use Case
Enterprise Virtualization Scaling with HPE DL580 Gen10 SAS Expander
In a large financial services data center, IT architects integrate the 881101-B21 HPE DL580 Gen10 12G 24-port SAS Expander to aggregate 48 NVMe and SAS drives behind a single controller. This configuration delivers linear I/O scaling for hundreds of VMware or Hyper-V VMs, reducing storage bottlenecks by 60% and enabling on-demand virtual machine provisioning with sub-millisecond latency.
AI/ML Training Acceleration Using 12G 24-port SAS Expansion
A biotech research lab deploying GPU-accelerated deep learning leverages the HPE DL580 Gen10 SAS Expander to attach multi-petabyte NVMe arrays across four nodes. The 12G SAS backplane sustains 3 GB/s per drive, cutting data ingest time by 50% and accelerating model training cycles by 2×, while preserving data integrity and simplifying cabling for large dataset pipelines.
Enterprise Backup and Disaster Recovery with High-Density SAS Connectivity
A global retail chain standardizes on the 881101-B21 SAS Expander to connect eight HPE MSA and StoreOnce tape-library enclosures to a single HPE DL580 Gen10 server. This high-port count solution streamlines incremental backup windows by 40%, ensures parallel data streams for fault-tolerant replication, and delivers predictable RTO/RPO SLAs across multiple geographic sites.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| 881101-B21 |  814068-B21 |  C8R39A |  749976-B21 |  P9M75A | |
|---|---|---|---|---|---|
| Product Type | Expansion Card | Expansion Card | |||
| Card Type | Storage Controller | Storage Controller | |||
| Interface | PCIe x8 | PCIe x8 | |||
| PCIe Version | PCIe 3.0 | PCIe 3.0 | |||
| Chipset / Controller | HPE SAS Expander Controller | HPE Smart Array P240 Controller | |||
| Supported Ports | N/A | N/A | |||
| Port Count | N/A | N/A | |||
| Max Data Rate | N/A | N/A | |||
| RAID Levels Supported | N/A | RAID 0 / RAID 1 / RAID 5 / RAID 10 / RAID 50 | |||
| Capture Resolution | N/A | N/A | |||
| Capture Frame Rate | N/A | N/A | |||
| Low Profile Bracket | Yes | Yes | |||
| Full Height Bracket | No | No | |||
| Cooling | Passive | Passive | |||
| Operating System Compatibility | Windows / Linux / VMware ESXi | Windows / Linux / VMware ESXi | |||
| Bus Width | 64-bit | 64-bit | |||
| Power Requirements | 3.3V | 3.3V | |||
| Use Case | Storage Expansion | Storage Expansion | |||
| Product Name | 881101-B21-HPE DL580 Gen10 12G 24-port SAS Expander | 814068-B21-HPE SMART ARRAY P240NR/1GB FIO CTRLR | |||
| Height | N/A | 1.48 inches | |||
| Width | N/A | 3.42 inches | |||
| Depth | N/A | 4.33 inches | |||
| Weight | N/A | 1.2 lbs |
Reviews & Ratings
A
Areeba Noor
5
Stable performance with multiple drives.
T
Tobias Lund
5
No compatibility issues.
Z
Zahid Mehmood
5
Reliable expansion option.
R
Rebecca Taylor
4
Works as expected.
Questions & Answers
What is the HPE DL580 Gen10 12G 24-port SAS Expander (SKU 881101-B21)?
The HPE DL580 Gen10 12G 24-port SAS Expander (SKU 881101-B21) is a high-density SAS expansion module that delivers 24 internal 12Gbps SAS ports to enhance storage connectivity in HPE ProLiant DL580 Gen10 servers.
Which HPE servers support the 881101-B21 SAS Expander?
The 881101-B21 SAS Expander is fully compatible with HPE ProLiant DL580 Gen10 servers when paired with a supported HPE Host Bus Adapter (HBA).
How many ports and what data rate does the SAS Expander provide?
It provides 24 SAS ports, each supporting up to 12Gbps data transfer for high-performance storage connectivity.
What types of drives can I connect through this SAS Expander?
When used with a compatible HBA, it supports SAS, nearline SAS, and SATA drives at up to 12Gbps per port.
Does the HPE 12G SAS Expander support hot-plug drives?
Yes, the expander supports hot-plug drive insertion via the server’s SAS backplane when installed with a compatible HBA.
What is the installation procedure for the 881101-B21 module?
Install the module into the dedicated PCIe expander slot, secure it with screws, connect Mini-SAS HD (SFF-8643) cables to your HBA, then power on and configure firmware.
How do I update the firmware on the SAS Expander?
Use HPE Smart Update Tools or HPE Service Pack for ProLiant to download and apply the latest expander firmware for optimal performance and compatibility.
Which cables are required for the 12G SAS Expander?
Use 12Gbps-rated Mini-SAS HD to SAS (SFF-8643 to SFF-8482) cables or equivalent cabling approved by HPE.
What is the typical power consumption of the SAS Expander?
The expander consumes approximately 15W at full load; actual power draw depends on server configuration and connected drives.
What warranty covers the HPE 881101-B21 SAS Expander?
The expander is covered by a one-year limited warranty, with options to extend coverage through HPE Care Pack services.
How can I verify the SAS Expander is functioning correctly?
Check port status in HPE iLO or Intelligent Provisioning diagnostics, ensuring all 24 ports report active and error-free.
Can I daisy-chain multiple HPE 12G SAS Expanders?
Yes, you can daisy-chain up to two expanders for increased port count, provided your HBA supports multi-expander topologies.
Is the 881101-B21 compatible with third-party HBAs?
While optimized for HPE HBAs, it may work with third-party 12Gbps SAS HBAs; compatibility is not guaranteed and should be validated prior to deployment.
What are the physical dimensions of the SAS Expander module?
The module measures 167 mm x 111 mm x 13 mm, fitting standard full-height server slots in HPE ProLiant systems.
Where can I purchase the HPE DL580 Gen10 SAS Expander?
It is available through authorized HPE resellers, HPE’s official online store, and leading IT distribution partners.
What troubleshooting steps should I take if ports are inactive?
Verify cable connections, update expander firmware, confirm HBA compatibility, and review iLO logs for SAS port errors or alerts.