Description
The QNAP CAB-SAS20M-8644 serves as a critical link for enterprise-grade storage environments, providing a robust 2.0-meter connection between host systems and expansion units. Engineered for the SFF-8644 standard, this cable supports high-bandwidth SAS 12Gb/s interfaces, ensuring that data-intensive applications maintain peak performance during heavy I/O workloads.
This product is for:
- IT Administrators managing enterprise-level QNAP ES1640dc v2 deployments.
- Data center engineers expanding storage capacity via REXP-1220U-RP or REXP-1620U-RP JBOD units.
- Creative professionals requiring high-speed DAS (Direct Attached Storage) connections for 4K/8K video editing workflows.
- System integrators building redundant storage arrays with SAS-12G2E expansion cards.
- Businesses looking for certified, high-reliability cabling to minimize downtime in mission-critical server environments.
Detailed specifications:
- Brand: QNAP
- Model: CAB-SAS20M-8644
- Cable Type: Mini-SAS (SFF-8644 to SFF-8644)
- Length: 2.0 Meters (6.56 feet)
- Interface Speed: Supports SAS 3.0 12Gb/s per lane
- Compatibility: REXP-1220U-RP, REXP-1620U-RP, SAS-12G2E, ES1640dc v2, EJ1601
- Connector Type: External High-Density (HD) Mini-SAS
Integrating the CAB-SAS20M-8644 into a storage rack is straightforward, thanks to its durable shielding and secure locking connectors that prevent accidental disconnections. In real-world testing, the 2.0-meter length provides sufficient slack for organized cable management within standard 42U racks while maintaining signal integrity across the 12Gb/s SAS bus. The cable's build quality reflects QNAP's commitment to enterprise stability, offering a plug-and-play experience that eliminates the handshake issues often found with generic third-party alternatives.
Compared to shorter 0.5m or 1.0m SAS cables, the CAB-SAS20M-8644 offers the necessary reach for connecting non-adjacent rack units, which is vital for thermal management and physical organization. While generic SFF-8644 cables may exist, this official QNAP accessory is specifically validated for the ES and REXP series firmware, ensuring full support for SES (SCSI Enclosure Services) and drive monitoring features that third-party cables might lack.
Q&A:
- What is the maximum data transfer rate for this cable? It supports SAS 3.0 standards, delivering up to 12Gb/s per lane for high-speed storage communication.
- Is this cable compatible with SFF-8088 ports? No, this cable uses SFF-8644 (High Density) connectors; please verify your hardware port type before purchase.
- Can I use this cable to connect a QNAP NAS to a non-QNAP JBOD? While it follows standard SAS protocols, it is optimized and certified for QNAP REXP and EJ series expansion units.
- Does the 2.0m length cause signal degradation? No, this cable is engineered to maintain full 12Gb/s signal integrity over its entire 2.0-meter span.
- Is this cable suitable for internal SAS connections? No, the CAB-SAS20M-8644 is an external Mini-SAS HD cable designed for connecting separate chassis.
