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Blue round cable with black SFF-8643 connectors at both ends

Vszerda

Vszerda SFF-8643 to SFF-8643 SAS cable 1m 12Gbps

SKU CH-45QX-T0MVA

One-metre SFF-8643 to SFF-8643 cable carries SAS 3.0 traffic at 12 Gbps over four lanes with 100-ohm impedance

  • 12 Gbps data rate for fast storage throughput
  • 1 metre length fits typical server chassis layouts
  • SFF-8643 connectors enable four lanes in a compact form factor
  • Compatible with SAS 2.1 and SAS 3.0 controllers
  • Works with Dell R710, R720, T610 and Norco RPC-4220, RPC-4224

1m SFF-8643 SAS Cable

This one-metre internal cable connects two SFF-8643 ports for SAS or SATA links at up to 12 Gbps. It uses AWG30 conductors with 100 Ohm impedance and carries four lanes of data. The 36-pin Mini SAS HD connectors suit servers, RAID controllers, PCIe HBAs and direct-attached storage arrays.

Upgrade from 6 Gbps SAS

Replaces older SAS 2.1 cables limited to 6 Gbps when the controller and backplane both support SAS 3.0. The jump is worth it only if every device in the chain runs at 12 Gbps; otherwise the link falls back to the lowest common speed.

SFF-8643 density limit

The SFF-8643 interface packs four lanes into a smaller footprint than legacy Mini SAS, raising port density on host adapters and backplanes. Cable length is fixed at one metre, so runs longer than 3.3 ft require a different assembly or an active extender.

Highlights

  • 12 Gbps data rate for fast storage throughput
  • 1 metre length fits typical server chassis layouts
  • SFF-8643 connectors enable four lanes in a compact form factor
  • Compatible with SAS 2.1 and SAS 3.0 controllers
  • Works with Dell R710, R720, T610 and Norco RPC-4220, RPC-4224

Specifications

No published specifications for this item yet.

Questions about this item

What chassis clearance does the 3.3ft SFF-8643 cable need for its 36-pin Mini SAS HD connectors?

The 1-metre cable uses standard SFF-8643 plugs that fit 36-pin Mini SAS HD ports on RAID controllers such as Dell PERC H700, H310, H200 and Norco RPC-4220 or RPC-4224; allow enough depth for the latch to click fully home.

Which step do installers most often miss when seating the SFF-8643 ends into a SAS 3.0 12Gbps backplane?

Push each connector straight in until the metal latch audibly clicks; a partial insert leaves the 100-ohm differential pairs unseated and causes link errors at 12Gbps.

When should the AWG30 SFF-8643 cable be replaced in a 4-lane SAS 12Gbps array?

Replace it if the latch tabs crack, the jacket shows kinks near the connector, or the controller logs cyclic redundancy errors on any of the four lanes during heavy I/O.

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