(870549-B21) HPE 12GB SAS EXPANDER

(870549-B21) HPE 12GB SAS EXPANDER


Product Specification:

HPE 12GB SAS Expander (Part Number: 870549-B21)

The HPE 12GB SAS Expander, identified by the part number 870549-B21, is a high-performance device manufactured to expand the storage capacity of SAS (Serial Attached SCSI) systems. Hewlett Packard Enterprise (HPE), a leading provider of enterprise IT solutions, manufactures the HPE 12GB SAS Expander.

Key Features:
1. Scalable Storage Expansion:

The HPE 12GB SAS Expander allows you to increase the storage capacity of your SAS system by connecting additional SAS drives or enclosures. It provides support for up to 28 internal SAS or SATA drives per expander.

2. High-Speed Data Transfer:

With a data transfer rate of 12 gigabits per second (Gb/s), the SAS expander ensures fast and efficient data transfer between the SAS controller and the connected drives. This high-speed connectivity minimizes latency and improves overall system performance.

3. Flexible Configuration:

The SAS expander offers flexible configuration options to meet your specific storage needs. It supports both SAS and SATA drives, allowing you to mix and match different drive types within the same system.

4. Easy Installation:

The HPE 12GB SAS Expander is designed to easily install and integrate into your existing SAS infrastructure. It features a plug-and-play design, allowing for quick and hassle-free setup.

5. Redundancy and Fault Tolerance:

The SAS expander supports multiple redundant paths between the SAS controller and the drives, ensuring high availability and fault tolerance. In case of a failure, the system can automatically switch to an alternative path, minimizing downtime and data loss.

6. Management and Monitoring:

The HPE 12GB SAS Expander can be effortlessly managed and monitored using HPE’s management software. This software enables you to have real-time insights into the health and performance of your storage infrastructure, ensuring efficient and effective management of your storage resources.


The HPE 12GB SAS Expander (870549-B21) is compatible with a wide range of HPE ProLiant servers and storage solutions. The HPE 12GB SAS Expander seamlessly integrates with HPE’s SAS controllers and drives, guaranteeing optimal performance and compatibility.


The HPE 12GB SAS Expander (870549-B21) is a reliable and high-performance device that allows you to expand the storage capacity of your SAS system. With its scalable design, high-speed data transfer, and flexible configuration options, it provides an efficient solution for growing storage needs.


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