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Thin black active cable with SFF-8611 and SFF-8643 connectors, 50cm long

Vszerda

Vszerda 0.5m OCuLink SFF-8611 4i to SFF-8643 Active Cable 50cm

SKU CH-BVT3-37GEB

Connects an OCuLink SFF-8611 controller to an SFF-8643 backplane over 50 cm with active-latch locking and 8 Gbps data rate

Cable Length 50 cm

  • 50 cm cable keeps internal layouts tidy
  • Active design supports 8 Gbps data throughput
  • SFF-8611 4i to SFF-8643 connects backplane to controller
  • Active latch locks securely to mating part
  • Not compatible with SFF-8643 slimline SAS RAID cards

Internal OCuLink SFF-8611 to SFF-8643 cable

This 50 cm active cable connects a controller with an SFF-8611 4i port to a backplane or device using an SFF-8643 connector. It is built for internal PCIe data links in servers and workstations. The active design supports the 8 Gbps transfer rate over the half-metre run. Both ends feature male plugs with active latches for a secure lock.

Practical limits of the OCuLink interface

The link runs at up to 8 Gbps and requires an OCuLink interface on both sides. The cable will not function with an SFF-8643 slimline SAS RAID card because the protocol differs. Length is fixed at 50 cm, so the controller and backplane must be close enough for that reach. No external or eSATA use is supported.

Installation notes and common issues

Push each connector straight in until the active latch clicks; the latch prevents accidental unplugging during vibration. A frequent error is trying to mate this cable with a slimline SAS port, which looks similar but will not work. Verify that the host side is an OCuLink SFF-8611 4i port before ordering. The short, stiff active cable needs a clear routing path without sharp bends.

How it compares

Measured against everything we stock in SATA & eSATA Drive Cables, at today’s prices. Recalculated every night.

Price $24.99
Pricier than about 83% of the 1,954 comparable items (median $13.99).

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Specifications

No published specifications for this item yet.

Other versions of this model

5 more in the same range

Questions about this item

Should I choose the 50cm length or a longer cable for my build?

The 50cm length suits tight chassis routing between a backplane and controller; longer cables add slack but may reduce signal integrity at 8 Gbps.

What does the 8 Gbps rate deliver in a live system?

It provides the full PCIe lane bandwidth the SFF-8611 host port can carry, limited only by the connected SSD or backplane capability.

How does the SFF-8611 to SFF-8643 interface affect compatibility?

The cable mates an OCuLink SFF-8611 controller port to an SFF-8643 backplane or drive; it will not function with slimline SAS RAID cards using SFF-8643.

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