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QNAP CAB-SAS20M-8644-8088 Mini SAS External Cable (SFF-8644 to SFF-8088)
Overview
The CAB-SAS20M-8644-8088 is a 2-meter Mini SAS external cable that bridges an SFF-8644 host-side connector to an SFF-8088 device-side connector. At 2M, it gives enough reach for adjacent rack-unit installations without the slack management issues of longer runs — use this when your expansion unit sits within the same rack or an immediately adjacent chassis, and you need a direct SAS link between the expansion card and the JBOD enclosure.
Compatibility
Verified compatible with the following QNAP platforms and expansion units:
- REXP-1220U-RP — 12-bay 2U SAS/SATA expansion enclosure
- REXP-1620U-RP — 16-bay 2U SAS/SATA expansion enclosure
- SAS-12G2E (including SAS-12G2E-D and SAS-12G2E-U variants) — 12Gb/s dual-port SAS expansion card
- ES1640dc v2 — enterprise ZFS NAS
- EJ1600 — SAS JBOD expansion enclosure
The SFF-8644 end connects to the host controller or NAS SAS port; the SFF-8088 end connects to the expansion unit. Confirm your specific hardware revision supports external Mini SAS before ordering — connector keying between SFF-8644 and SFF-8088 is not interchangeable with SFF-8087 or SFF-8643 variants. For a broader view of compatible storage expansion accessories, compare against the full QNAP expansion cable lineup to match the correct connector pairing for your system.
Installation Notes
Route the cable to avoid sharp bends near the SFF connector backshells — Mini SAS external cables have a minimum bend radius; forcing a tight corner at the strain relief can stress the connector housing and degrade signal integrity over time. At 2M, plan the cable path before seating either end, as the locking latches on SFF-8644 and SFF-8088 connectors require straight axial insertion and positive engagement — do not force or angle-insert. Secure excess cable with hook-and-loop ties rather than rigid zip ties to allow thermal expansion in the enclosure.
QNAP Mini Sas Cable (Sff-8644 To Sff-8088) - CAB-SAS20M-8644-8088
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