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Tangerine QSFP+ to QSFP+ copper cable, 3.28 ft

Cisco Systems, Inc.

Cisco Systems, Inc. QSFP-H40G-CU1M= 3.28 ft network ethernet cable

SKU CH-VSEV-XSVQS MPN QSFP-H40G-CU1M=

A 3.28 ft QSFP+ to QSFP+ copper cable for 40 Gigabit links between Cisco switches

  • First connector1 x Male QSFP+
  • Second connector1 x Male QSFP+
  • Overall length3.28 ft (1 m)
  • Product colorTangerine
  • 40-Gigabit link between Cisco QSFP+ ports
  • 28 ft passive copper for short-range rack connections
  • Male QSFP+ connectors on both ends for direct attachment
  • Tangerine jacket for quick visual identification
  • Cost-effective alternative to optical modules for adjacent racks

Cisco QSFP+ Direct-Attach Cable

This Cisco QSFP-H40G-CU1M= is a 40 Gigabit copper direct-attach cable with male QSFP+ connectors on both ends. It is built for network engineers linking Cisco switches inside a single rack or between adjacent racks. The 3.28 ft length and tangerine jacket make it easy to identify in dense patch panels. It suits installers who need a factory-terminated, passive copper link without separate transceivers.

Passive Copper Reach Limit

Passive copper direct-attach cables are specified for very short distances only. The 3.28 ft length fits within a single rack or across neighbouring racks but cannot span longer rows or cross-room runs. Signal integrity depends on the host ports meeting Cisco 40GBASE-SR4 electrical requirements; longer passive reaches are not supported by this cable. Active optical or longer passive assemblies are required beyond this distance.

Build and Daily Handling

The cable uses a fixed QSFP+ plug on each end with a tangerine outer jacket for quick visual tracing. Passive construction means no onboard electronics, reducing failure points and power draw. The short, stiff copper bundle resists sharp bends, so routing must allow gentle curves near the port. Connectors latch securely into Cisco QSFP+ ports and release with a standard bail mechanism.

How it compares

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Price $188.99
Pricier than about 91% of the 9,945 comparable items (median $14.99).

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Specifications

Product
Brand nameCisco
Model nameQSFP-H40G-CU1M
Product colorTangerine
Ports & slots
First connector1 x Male QSFP+
Second connector1 x Male QSFP+
Size & build
Overall length3.28 ft (1 m)
Shipping weight0.45 kg
Package size25 × 25 × 23 mm

Questions about this item

Should I choose the 1-meter, 3-meter, or 5-meter passive copper cable for my rack layout?

The 3.28 ft (1-meter) length suits connections inside a single rack or between directly adjacent racks; longer passive cables are available for wider spacing.

What does the 40-Gigabit rating mean when the cable is plugged into two Cisco switches?

It delivers a 40 Gbps direct-attach link between QSFP+ ports with no transceiver modules required.

The cable uses QSFP+ connectors — what does that interface cap in practice?

The male QSFP+ ends mate with Cisco 40GBASE-SR4 QSFP+ copper module ports, limiting the link to 40 Gbps over passive copper.

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