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Black QSFP+ breakout cable splitting to four SFP+ plugs, 16.4 ft

STARTECH

STARTECH QSFP4SFP10C5 network ethernet cable 16.4 ft 40 GbE

SKU CH-77R5-31GRQ MPN QSFP4SFP10C5

QSFP+ to four SFP+ breakout cable, 16.4 ft, 40 GbE, Cisco compatible, lifetime warranty

  • First connector1 x QSFP+ Latching Plug
  • Second connector4 x SFP+ Latching Plug
  • Product typeNetwork Ethernet Cable
  • Overall length16.4 ft (5 m)
  • Product colorBlack
  • Key features100% compatibility with Cisco QSFP-4SFP10G-CU5M guaranteed S
  • 40 GbE throughput via single QSFP+ connector
  • 100% Cisco QSFP-4SFP10G-CU5M compatibility guaranteed
  • 4 ft breakout reaches four SFP+ ports
  • Lifetime warranty backs every StarTech SFP cable
  • Low power draw under 0.1 W reduces heat

QSFP+ Breakout Cable for 40 GbE Links

This 16.4 ft cable splits one QSFP+ port into four SFP+ connections for 40 GbE networking. It is built for data-centre racks and high-density switches that need short-range copper reach between aggregation and access layers.

Hot-Swap Installation with Latching Connectors

Both ends use latching plugs that click into QSFP+ and SFP+ cages without tools. The assembly is hot-swappable, so links can be added or moved while the system runs. Mis-aligned insertion can damage the latch; seat each connector straight before applying pressure.

Suits Cisco-Compatible 40 GbE Breakout Needs

Ideal for operators who require a direct-attached copper breakout matched to the Cisco QSFP-4SFP10G-CU5M part. Not suited for runs longer than 16.4 ft, for single-fibre or multimode fibre links, or for environments that demand optical isolation.

How it compares

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Price $232.99
Pricier than about 91% of the 9,945 comparable items (median $14.99).

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Specifications

Product
Brand nameStarTech.com
Model nameQSFP4SFP10C5
Product typeNetwork Ethernet Cable
Product colorBlack
Ports & slots
First connector1 x QSFP+ Latching Plug
Second connector4 x SFP+ Latching Plug
Size & build
Overall length16.4 ft (5 m)
Shipping weight0.84 kg
Package size373 × 259 × 80 mm

Questions about this item

How do I verify the QSFP4SFP10C5 is operating at 40 GbE after connecting it?

Check the link status LEDs on both the QSFP+ and SFP+ ports; they should show a solid or blinking green light indicating an active 40 GbE connection.

What is included with the STARTECH QSFP4SFP10C5 and what must I purchase separately?

The box contains the 16.4 ft breakout cable with one QSFP+ latching plug and four SFP+ latching plugs; you must buy compatible QSFP+ and SFP+ transceivers or switches separately.

Which version of the QSFP4SFP10C5 should I choose for a 5-metre Cisco-compatible link?

This single model is the 5 m (16.4 ft) Cisco QSFP-4SFP10G-CU5M compatible version; no other lengths or variants are offered for this part number.

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