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The CAB-SAS20M-8644 is a Mini-SAS HD 12Gb/s cable using the SFF-8644 external connector standard — the interface used to connect QNAP NAS enclosures to compatible storage expansion units. When your deployment requires more raw drive bays than a single chassis provides, this cable is the physical link that makes the expansion work. The SFF-8644 connector delivers the bandwidth headroom needed for dense drive configurations without becoming the throughput bottleneck.
Designed for use with QNAP NAS systems and QNAP storage expansion enclosures that expose external SFF-8644 Mini-SAS HD ports. Compatible expansion units in the QNAP lineup include JBOD and RAID expansion shelves such as the QNAP JBOD series (e.g., TR-004U, TL-D series expansion enclosures) and host NAS models with corresponding SFF-8644 external SAS ports. Verify your specific NAS and expansion unit both carry SFF-8644 external ports before ordering — the SFF-8644 external connector is physically distinct from the internal SFF-8087 and SFF-8643 Mini-SAS HD internal variants and will not mate with them. Consult the QNAP storage catalog to confirm port compatibility for your chassis pair.
Route the cable to avoid sharp bends at the connector strain relief — Mini-SAS HD connectors are keyed and seat with a positive latch; confirm the latch clicks before powering on. For rack deployments, plan cable management before seating both ends: 2 meters provides adequate slack for most 2U–4U rack shelf pairings but may be tight if the NAS and expansion unit are separated by more than two rack units with a rear-cable path. Do not force the connector if resistance is felt — verify pin alignment and that neither port has bent contacts from prior use. Check the NAS and storage expansion section for compatible enclosure pairings.
Manufacturer-verified compatible cameras, recorders, mounts, accessories, and licenses for this product. Adjust quantities and add the entire bundle to your cart in one click.
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