QSFP-4X10G-AOC10M – 40G QSFP+ Breakout – 4x10G SFP+ AOC – 10m Length

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QSFP-4X10G-AOC10M Description

The QSFP-4X10G-AOC10M is a Cisco 40GBASE-AOC QSFP to four SFP+ active optical breakout cable that connects one 40G QSFP port to four 10G SFP+ ports. The 10-meter cable splits 7 meters from the 40G end and has a 3.5 mm QSFP-end diameter, a 60 mm QSFP-end bend radius and a red pull tab. Each active end draws 1.5W, and the cable operates from 0 to 70 degrees C.

Quick Specs

Parameter

Specification

Product ID

QSFP-4X10G-AOC10M

Product type

40GBASE-AOC QSFP to 4 SFP+ active optical breakout cable

Cable assembly type

Active optical cable assembly

Interface form factor

QSFP to four SFP+ breakout

Ethernet role

40 Gigabit Ethernet to four 10 Gigabit Ethernet breakout

Cable length

10 meters

Breakout location

7 meters from 40G end

Pull tab color

Red

QSFP connector module dimensions

13.5 x 18.4 x 72.4 mm maximum outer dimensions

QSFP connector module weight

100 grams or less

QSFP-end cable diameter

3.5 mm

QSFP-end bend radius

60 mm

QSFP-end face plate distance

100 mm

Application Scenarios

40G To 10G Rack Fan-Out

In a server row, one 40G QSFP port on an aggregation switch feeds four 10G SFP+ ports through a single cable, with the breakout point 7 meters from the 40G end leaving 3 meters for the SFP+ legs.

Staged 40G Migration

A site that has moved its uplinks to 40G while downstream devices stay on 10G SFP+ can join the two with this cable, and its 3.5 mm optical legs are easier to dress through cable managers than copper.

Product Comparison

Parameter

QSFP-4X10G-AOC10M

QSFP-4X10G-AOC7M

QSFP-4X10G-AC10M

Product type

QSFP to 4 SFP+ active optical breakout cable

QSFP to 4 SFP+ active optical breakout cable

QSFP to 4 SFP+ active copper breakout cable

Cable length

10 meters

7 meters

10 meters

Breakout location from 40G end

7 meters

4 meters

7 meters

QSFP-end cable diameter

3.5 mm

3.5 mm

9 mm

QSFP-end bend radius

60 mm

60 mm

50 mm

SFP-end cable diameter

3 mm

3 mm

5 mm

QSFP-4X10G-AOC10M and QSFP-4X10G-AC10M are both 10-meter QSFP to four SFP+ breakout cables with the breakout point 7 meters from the 40G end, but QSFP-4X10G-AOC10M is active optical at 3.5 mm on the QSFP end and 3 mm on the SFP+ end, while QSFP-4X10G-AC10M is active copper at 9 mm and 5 mm. Racks where thick copper bundles crowd the trays suit the optical cable, and its 60 mm QSFP-end bend radius is wider than the 50 mm of the copper cable, so the tray layout decides between them. Routes of 7 meters or less fit QSFP-4X10G-AOC7M, with the breakout point 4 meters from the 40G end. Cisco lists optical breakout cables only up to 10 meters.

Ordering Checklist

  • Host support: Confirm the 40G QSFP port on the host and the far-end ports for QSFP-4X10G-AOC10M appear in Cisco’s Optics-to-Device Compatibility Matrix (tmgmatrix.cisco.com). Platform support is listed in that matrix, not in the cable data sheet.

Specifications

Parameter Specification Parameter Specification
Product ID QSFP-4X10G-AOC10M Product type 40GBASE-AOC QSFP to 4 SFP+ active optical breakout cable
Cable assembly type Active optical cable assembly Interface form factor QSFP to four SFP+ breakout
Ethernet role 40 Gigabit Ethernet to four 10 Gigabit Ethernet breakout Cable length 10 meters
Breakout location 7 meters from 40G end Pull tab color Red
QSFP connector module dimensions 13.5 x 18.4 x 72.4 mm maximum outer dimensions QSFP connector module weight 100 grams or less
QSFP-end cable diameter 3.5 mm QSFP-end bend radius 60 mm
QSFP-end face plate distance 100 mm SFP-end cable diameter 3 mm
SFP-end bend radius 30 mm SFP-end face plate distance 80 mm
Jacket material PVC Jacket color Orange
Operating temperature 0°C to 70°C (32°F to 158°F) Storage temperature -40°C to 85°C (-40°F to 185°F)

Quality Certifications

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    Raj Alvarez
    Posted on 20/04/2026
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    Layer23 provided a detailed comparison when I was unsure between two options.

    Barbara Jensen
    Posted on 15/12/2025
    Verified Buyer
    5.0

    Solid product, solid service. Will definitely order again.

    Noah Sullivan
    Posted on 03/12/2025
    Verified Buyer
    5.0

    Outer carton was rated for the weight of the contents. Good logistics choice.

Questions & Answers

  • How long is QSFP-4X10G-AOC10M?

    QSFP-4X10G-AOC10M is 10 meters long, with the breakout point 7 meters from the 40G end. The cable is an active optical assembly that connects one 40G QSFP port to four 10G SFP+ ports, leaving 3 meters for the four SFP+ legs after the breakout point.
  • What operating temperature range does QSFP-4X10G-AOC10M support?

    QSFP-4X10G-AOC10M operates from 0 to 70 degrees C. Each active end draws 1.5W, so the QSFP port and the four SFP+ ports it connects must stay inside that range, and a site that falls below 0 degrees C is outside it.
  • How long is QSFP-4X10G-AOC10M in feet?

    QSFP-4X10G-AOC10M measures 32.8 ft. Cisco's QSFP+ cable installation guide lists this active optical breakout cable family in 1, 2, 3, 5, 7 and 10 m lengths, with 10 m as the longest of the family.
  • What bend radius and face plate distance apply at the SFP+ ends of QSFP-4X10G-AOC10M?

    The SFP+ ends of QSFP-4X10G-AOC10M have a 30 mm bend radius and need 80 mm of face plate distance. Leave that depth free in front of the four SFP+ ports before routing the legs into a cable manager.
  • What storage temperature range applies to QSFP-4X10G-AOC10M?

    QSFP-4X10G-AOC10M can be stored from -40 to 85°C (-40 to 185°F). Its operating range is much narrower, so allow the cable to reach room conditions before the link is brought up after cold or hot storage.
  • What jacket does QSFP-4X10G-AOC10M use?

    QSFP-4X10G-AOC10M uses an orange PVC jacket. The orange jacket separates the cable from the red pull tab on the connector, which helps identify the breakout legs when many cables share one cable manager in a cabinet.

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DataSheet Downloads

  • QSFP-4X10G-AOC10M Datasheet