HPE 12G Minisas Hd/minisas 2M Fanout CBL - P35176-B21

HPE P35176-B21 12Gb Mini SAS HD Fanout Cable

Overview

The HPE P35176-B21 is a 12Gb Mini SAS High Density to Mini SAS High Density external fanout cable rated for 4-lane operation at 2 meters in length. This cable is purpose-built for enterprise storage arrays, server backplane connectivity, and high-density SAS topologies where you need reliable data transit at 12Gb speeds without signal degradation over moderate distances. If you're commissioning HPE storage enclosures, ProLiant servers with external SAS controllers, or multi-node surveillance architectures requiring backhaul from embedded storage controllers to external JBOD arrays, the P35176-B21 is the connector you specify — not a generic aftermarket cable.

Key Features

• 12Gb SAS Data Rate: Sustains 12Gb/s per lane across all four lanes — critical for real-time surveillance workflows where you cannot afford mid-stream throughput loss. 48Gb aggregate bandwidth (4 lanes × 12Gb) handles sustained multistream video ingest and archive concurrently.
• Mini SAS HD to Mini SAS HD Connector: High-density 36-pin SFF-8644 endpoints on both ends. This connector type is standard on HPE controllers and enclosures; direct pin-to-pin compatibility eliminates adapter chains that degrade signal integrity.
• 4-Lane Configuration: Full four-lane support means no bandwidth bottleneck at the SAS link level. Each lane operates independently; loss of one lane still permits operation at reduced speed (crucial for fault-tolerant designs).
• 2-Meter Fanout Length: Long enough for rack-mounted storage arrays positioned above or to the side of the controller server, yet short enough to avoid impedance discontinuities that plague longer passive SAS runs. At 2m, signal attenuation remains within HPE's compliance envelope.
• External Topology Support: Designed for external SAS fabric (outside the server chassis). Use this for direct-attach storage (DAS) arrays, JBOD enclosures, or SAN appliance uplinks — not internal server backplane connections (those require different Mini SAS connector variants).
• Factory-New, Direct Sourcing: Sourced directly from manufacturer inventory or US distributor channels — no grey-market, no refurbished stock. Ensures full warranty coverage and compliance with HPE's firmware and driver expectations.

Integration & Compatibility

The P35176-B21 integrates into any HPE storage or server architecture requiring Mini SAS HD external connectivity: ProLiant Gen8, Gen9, Gen10, and Gen10 Plus servers with external SAS HBA cards; SmartArray E208i-p, E408i-p, or E816i-p controllers with external SAS ports; Nimble Storage, 3PAR, or MSA arrays using HPE's standard SAS backhaul. ONVIF camera recorders and embedded NVRs with direct HPE storage attachments benefit from the full 12Gb bandwidth and low-latency delivery this cable provides. Verify your endpoint controller and enclosure both present SFF-8644 Mini SAS HD ports (not Mini SAS, not SAS, not Molex) before ordering — mismatched connector types are not compatible and will not seat.

What's in the Box

One HPE P35176-B21 12Gb Mini SAS HD to Mini SAS HD 4-lane fanout cable, 2 meters.

Frequently Asked Questions

Q: Is the P35176-B21 backward compatible with older Mini SAS connectors?

A: No. Mini SAS HD (SFF-8644) is mechanically and electrically incompatible with legacy Mini SAS (SFF-8087) and standard SAS (SFF-8470) connectors. Both endpoints of your link must support Mini SAS HD; adapters do not exist for this mismatch.

Q: What is the maximum throughput on the P35176-B21?

A: 48Gb/s aggregate across all four lanes (4 lanes × 12Gb/s per lane). Real-world sustained throughput depends on drive performance, controller firmware, and workload concurrency, but the cable itself does not limit speed.

Q: Can I use the P35176-B21 for internal server backplane connections?

A: No. This is an external cable designed for out-of-chassis SAS fabric (storage enclosures, JBOD arrays, external HBAs). Internal server backplane connections use different Mini SAS connector types and shorter runs; using this cable internally may cause mechanical stress.

Q: Does the P35176-B21 include any active components or signal conditioning?

A: No. This is a passive copper cable with no amplification, termination circuitry, or active equalization. Performance depends entirely on the quality of the connector seats and cable shielding — ensure both ends are fully seated and latched.

Q: What warranty does the P35176-B21 carry?

A: HPE's standard limited lifetime warranty on passive cables covers defects in materials and workmanship. Consult HPE's warranty terms for your region; cable failures due to physical damage or improper installation are not covered.

Ted Perry

I spec the P35176-B21 into surveillance storage backends where HPE controllers drive external JBOD arrays. At 12Gb per lane across four lanes, you get the full 48Gb aggregate bandwidth you need to avoid controller-to-storage bottlenecks — especially important on multi-tenant NVR systems recording 20+ high-bitrate video streams simultaneously. The 2-meter fanout cable length is the sweet spot for rack-mounted topologies; long enough to route around other infrastructure, short enough to stay within HPE's passive SAS compliance window.

Technical Highlights:

• 4-Lane 12Gb Operation: All four lanes active at 12Gb/s per lane delivers 48Gb total throughput. No artificial speed downgrade; this matters when you're backhaul-constrained on video ingest. A single-lane failure still permits operation at 36Gb/s.
• Mini SAS HD (SFF-8644) Connectors: Standard HPE connector footprint across ProLiant Gen8–Gen10 Plus servers and all external SAS enclosures. Direct pin match eliminates adapter chains that introduce latency and jitter.
• Passive Design: No active components means no power draw, no single points of failure in the cable itself. Signal integrity is purely dependent on connector seating and cable shielding — both rock-solid on HPE factory stock.

Deployment Considerations:

• Verify both your controller and enclosure present SFF-8644 Mini SAS HD ports. Older HPE arrays and controllers may use legacy Mini SAS (SFF-8087) — this cable will not mate. Check your spec sheet or vendor documentation before ordering.
• The 2-meter length is fixed; if you need longer runs (3m, 5m), you may require an external SAS expansion module or a different HPE cable SKU. Passive SAS cable length beyond ~5m risks signal attenuation and link errors.

Deploy the P35176-B21 in any HPE surveillance NVR or archive appliance that attaches external JBOD storage. The full 48Gb throughput ensures you're not throttling video ingest on the storage path — a real win on high-density multi-stream recorder clusters where controller throughput is already under pressure.