HPE 716195-B21 External 1M MiniSAS HD to MiniSAS HD Cable
Overview
The HPE 716195-B21 is a 1-meter external SAS cable terminated with SFF-8644 (4x HD Mini-SAS) connectors on both ends. It is designed to connect HPE servers and storage enclosures where an external SAS path is required — think JBOD expansion shelves, direct-attach storage arrays, or external tape libraries that demand a reliable, high-density SAS link. If you are expanding storage capacity on an HPE ProLiant or StoreEasy platform and need a factory-spec cable that fits HPE's validated configuration matrix, the 716195-B21 (often searched as 716195 B21) is the correct part to specify.
Key Features
- SFF-8644 on Both Ends: The 4x HD Mini-SAS connector provides a high-density interface that carries four SAS lanes in a single compact plug. This keeps cable clutter minimal in rack environments where port real estate on the HBA or expander is limited.
- 1-Meter Reach: At 1.0 meter, this cable is sized for same-rack or adjacent-rack connections — the most common external SAS topology in enterprise server rooms. Long enough to exit a server chassis, short enough to avoid the slack management headaches that come with 2- or 4-meter runs.
- External-Grade Construction: The cable is rated for external use, meaning it is shielded and jacketed to handle the EMI exposure and physical handling that occurs outside a chassis enclosure — unlike internal SAS cables, which are not designed for open-air routing.
- HPE Factory Specification: Sourced as a genuine HPE accessory, this cable is validated against HPE's server and storage compatibility matrices. Using a factory-spec cable avoids the support complications that can arise when third-party cables are flagged during HPE iLO diagnostics or warranty service events.
- Compact Form Factor: Weighing 0.44 lb and shipping in an 11.88 x 16 x 3.38 in package, this cable stores and ships without bulk — relevant for spare-parts inventory management in larger deployments where dozens of cables may be stocked.
Integration & Compatibility
The SFF-8644 interface is the standard HD Mini-SAS external connector used across HPE's ProLiant server and MSA/StoreEasy storage lines. Verify the host HBA or controller port and the storage enclosure's SAS in-port both carry SFF-8644 before ordering — older HPE platforms may use SFF-8088 (standard Mini-SAS), which requires a different cable or an adapter. The 716195-B21 is a like-for-like replacement cable for HPE systems that shipped with this part number from the factory.
Frequently Asked Questions
Q: What connectors does the HPE 716195-B21 use?
A: Both ends use SFF-8644 (4x HD Mini-SAS) connectors. This is the external HD Mini-SAS standard, not the older SFF-8088 Mini-SAS. Confirm your HBA and storage enclosure both have SFF-8644 ports before ordering.
Q: How long is the 716195-B21 cable?
A: The cable is 1.0 meter (approximately 3.3 feet) in length, suited for same-rack or adjacent-rack external SAS connections.
Q: Is this cable for internal or external SAS connections?
A: External. The 716195-B21 is shielded and jacketed for open-air external routing — not an internal chassis cable. It is designed to connect a server's external SAS port to an external storage enclosure or expansion shelf.
Q: Will this cable work with non-HPE storage enclosures?
A: The SFF-8644 connector is an industry-standard interface, so physically it can mate with any SFF-8644 port. However, HPE validates this cable specifically within HPE's server and storage compatibility matrices. Compatibility with third-party enclosures is not verified by this listing.
Q: What is the weight of the 716195-B21?
A: The cable weighs 0.44 lb (0.2 kg).
When I spec external SAS paths on HPE ProLiant and MSA builds, the cable is one of the easiest things to get wrong — and the 716195-B21 is specifically the part that resolves that for 1-meter SFF-8644-to-SFF-8644 runs. The dual SFF-8644 termination carries all four SAS lanes in a single connector, which matters when you're working with a 2U storage shelf and the port count on the expander is already tight.
Technical Highlights:
- SFF-8644 (4x HD Mini-SAS): Four SAS lanes per connector — higher density than SFF-8088, which means fewer cables to manage when connecting an expansion shelf with multiple SAS paths.
- 1.0-Meter Length: Sized for same-rack or adjacent-rack placement. Avoids the slack bunching and bend-radius concerns that come with unnecessarily long external SAS cables in a tightly cabled rack.
- External-Grade Shielding: Built for open-air routing outside chassis enclosures, which matters for EMI compliance in dense rack environments where signal integrity on SAS paths can degrade with unshielded cables.
Deployment Considerations:
- Verify connector type before ordering — HPE platforms older than the SFF-8644 generation use SFF-8088 (standard Mini-SAS external). The two are physically incompatible without an adapter.
- At 1 meter, this cable is only viable for same-rack or directly adjacent rack positions. If the server and storage shelf are in separate racks with any distance between them, a 2-meter or 4-meter variant is the correct specification.
This cable is the right specification for HPE ProLiant server-to-MSA storage shelf connections where the SFF-8644 interface is already present on both ends and the run stays within a single rack — a common configuration in branch office storage expansions and edge compute deployments where rack space is consolidated.
