Cisco QSFP-4 x 10G-AOC20M Compatible 40G QSFP+ to 4 x 10G SFP+ Active Optical Breakout Cable, 20m (66ft)

Use the QSFP-4 x 10G-AOC20M compatible assembly where a 40G connection is required between compatible ports. This page covers the 20m (66ft) version only, with its own HT part number, specifications and compatibility verification.

OEM Part Number: QSFP-4 x 10G-AOC20MHT Part Number: QSFP-4 x 10G-AOC20M

Product Highlights

• Compatible alternative to Cisco QSFP-4 x 10G-AOC20M
• 40G connectivity at 40Gbps
• Interface configuration: QSFP+ to 4 SFP+
• Fixed length and part number: 20m (66ft), QSFP-4 x 10G-AOC20M
• Minimum bend radius: 30mm

This assembly uses OFNP jacket, minimum bend radius 30mm. These mechanical characteristics affect how the cable should be dressed behind the equipment. Avoid sharp edges, excessive ties and repeated tight bends close to the connector boots.

QSFP-4 x 10G-AOC20M occupies the middle of this family between QSFP-4 x 10G-AOC15M at 15m (49ft) and QSFP-4 x 10G-AOC25M at 25m (82ft). It adds 5m over the shorter option for extra routing clearance, while the next longer version adds another 5m. Measure the managed path and choose this version when its reach is sufficient without creating the slack associated with the longer assembly.

The intended application is determined by the host interface and protocol support. Listed interface and protocol references include 10G/40Gigabit Ethernet or Fibre Channel. Confirm that the host firmware and port configuration support the same operating mode.

The QSFP+ to 4 SFP+ configuration divides the high-speed interface into multiple lower-speed connections. Verify the upstream lane assignment, downstream port speeds and breakout setting on the host before connecting the assembly. Each branch must attach to the correct remote interface.

The optical engines and fiber are permanently integrated into this AOC. There are no detachable optical modules to clean or exchange. Handle the complete assembly by its connector housings and cable, and keep both ends matched to the same interface specification.

The extended 20m (66ft) reach supports connections across adjacent racks or between separated equipment rows. Secure the cable along its route, protect both ends from pull loads and preserve ventilation. The integrated AOC construction avoids a chain of separate modules and patch leads.

The HT cable carries the compatibility configuration associated with QSFP-4 x 10G-AOC20M, while its mechanical assembly remains the fixed 20m (66ft) version described here. Incoming inspection, connector examination and a live link test are completed before packing. Customers with unusually old or new Cisco software can request a pre-order check.

This product is ordered as QSFP-4 x 10G-AOC20M in 20m (66ft). Include the equipment model and software release if you would like a pre-order compatibility review. Other lengths use different part numbers and should not be substituted into the same order line.

Production inspection covers both physical condition and a live link check. Connector ends receive individual protection, and the completed assembly is packed without tight ties or sharp bends. For multi-length projects, cartons can be separated and labelled by OEM part number to simplify installation on site.

Stock items are generally dispatched within one to three working days after order confirmation. DHL, UPS, FedEx, TNT and EMS are available for international delivery; larger consolidated orders can move by air or sea freight. Customer courier accounts and nominated forwarders are accepted.