SFP-H25G-CU5M – 25G SFP28 DAC – 5m Passive Copper – RS-FEC

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SFP-H25G-CU5M Description

The SFP-H25G-CU5M is a Cisco 25GBASE-CR1 SFP28 passive copper direct-attach cable for 25 Gigabit Ethernet links between supported SFP28 host ports. It provides a fixed 5-meter reach with SFP28 connectors at both ends, a gray pull tab, and 0.1W maximum power consumption. The cable requires RS-FEC on the host ports.

Quick Specs

Parameter

Specification

Product ID

SFP-H25G-CU5M

Product type

25GBASE-CR1 SFP28 passive copper cable

Cable assembly type

Direct-attach copper cable assembly

Connector form

SFP28 at both cable ends

Data rate

25 Gigabit Ethernet

Cable length

5 meters

Pull tab or bail latch color

Gray

Maximum power consumption

0.1W

Host FEC requirement

RS-FEC required for this 5-meter copper cable

Operating temperature class

Commercial 0 to 70°C

Compatibility reference

Cisco Transceiver Module Group Compatibility Matrix

Application Scenarios

Server Rack To Leaf Switch

In a data center, the 5-meter passive copper cable connects an SFP28 server adapter in one rack to a leaf switch a few racks away, carrying 25 Gigabit Ethernet without powered optics.

Catalyst 9300 Uplink Aggregation

On a campus access stack, the cable links a C9300-NM-2Y 25G uplink port to an SFP28 port on a nearby distribution switch, with RS-FEC enabled on both ports.

Product Comparison

Parameter

SFP-H25G-CU5M

SFP-H25G-CU4M

SFP-H25G-CU3M

SFP-25G-AOC5M

Product type

25GBASE-CR1 SFP28 passive copper cable

25GBASE-CR1 SFP28 passive copper cable

25GBASE-CR1 SFP28 passive copper cable

25GBASE-AOC SFP28 active optical cable

Cable length

5 meters

4 meters

3 meters

5 meters

Connector form

SFP28 at both cable ends

SFP28 at both cable ends

SFP28 at both cable ends

SFP28 at both cable ends

Host FEC requirement

RS-FEC required

RS-FEC required

BASE-R FEC required

BASE-R FEC or RS-FEC required

Maximum power consumption

0.1W

0.1W

0.1W

1W

Pull tab or bail latch color

Gray

Green

Orange

Gray

SFP-H25G-CU5M is the 5-meter, gray-latch passive copper cable and the longest in this group, and it needs RS-FEC on the host ports like SFP-H25G-CU4M, which is 1 meter shorter with a green latch. A route of 3 meters or less can use SFP-H25G-CU3M, which changes the host requirement to BASE-R FEC. Where the 5-meter run should use active optical media instead of copper, SFP-25G-AOC5M has the same length and gray latch, draws 1W against 0.1W, and accepts either BASE-R FEC or RS-FEC.

Ordering Checklist

  • Catalyst 9200L fixed 25G uplinks: Confirm the switch is a Catalyst 9200L model with 2x25G SFP28 uplink ports. Only the 25G uplink variants have SFP28 ports; the 4x1G and 4x10G uplink models take 1G SFP or 10G SFP+ modules.
  • Catalyst 9200 25G uplink module: Add C9200-NM-2Y (2x25G) in C9200-24PXG or C9200-48PXG. C9200-NM-2Y is supported only on those two C9200 models.
  • Catalyst 9300 25G uplink module: Add C9300-NM-2Y (2x25GE SFP28 slots) in a modular-uplink Catalyst 9300 switch. The 25G SFP28 slots sit on this uplink module, not on the 1G, 10G or 40G modules.

Specifications

Parameter Specification Parameter Specification
Product ID SFP-H25G-CU5M Product type 25GBASE-CR1 SFP28 passive copper cable
Cisco ordering description 25GBASE-CR1 SFP28 Passive Copper Cable, 5-meter Cable assembly type Direct-attach copper cable assembly
Connector form SFP28 at both cable ends Data rate 25 Gigabit Ethernet
Cable length 5 meters Media class Passive copper DAC
Pull tab or bail latch color Gray Maximum power consumption 0.1W
Host FEC requirement RS-FEC required for this 5-meter copper cable FCoE support condition Supported with appropriate host software support
Operating temperature class Commercial Operating temperature 0 to 70°C
Storage temperature -40 to 85°C Standards references SFF-8402, SFF-8472, IEEE 802.3, IEEE P802.3by
Catalyst 9200L support example Cisco IOS XE Gibraltar 16.11.x notes list SFP-H25G-CU5M for C9200L Multigigabit Ethernet models with 25G uplinks Catalyst 9300 support example Cisco IOS XE Fuji 16.8.x notes list SFP-H25G-CU5M in the C9300-NM-2Y 25G uplink module context
UCS VIC support boundary VIC 1455, VIC 1457, and VIC 1467 support requires Cisco release and firmware checks listed in the UCS VIC data sheet Compatibility reference Cisco Transceiver Module Group Compatibility Matrix
Official support boundary Verify the exact Cisco host, port type, and software release before deployment

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Questions & Answers

  • From which IOS XE release is SFP-H25G-CU5M listed for the Catalyst 9300 C9300-NM-2Y uplink module?

    SFP-H25G-CU5M is listed for the C9300-NM-2Y from IOS XE 16.8.1a, per the Catalyst 25G uplink release notes. That Fuji release introduced the 25G copper cables on the module. Use IOS XE 16.8.1a or later on the host.
  • Which IOS XE train lists SFP-H25G-CU5M on Catalyst 9200L models with 25G uplinks?

    Cisco IOS XE Gibraltar 16.11.x notes list SFP-H25G-CU5M for Catalyst 9200L Multigigabit Ethernet models with 25G uplinks. Run 16.11.x or a later release on the 9200L before using the cable on the SFP28 uplink ports.
  • Does SFP-H25G-CU5M support FCoE traffic?

    Yes, SFP-H25G-CU5M supports FCoE when the host provides the matching software support. The 5-meter assembly carries the frames at 25 Gigabit Ethernet, so FCoE must be enabled in the switch or adapter software for the SFP28 port.
  • What storage temperature range applies to SFP-H25G-CU5M?

    SFP-H25G-CU5M can be stored at -40 to 85°C, wider than its 0 to 70°C operating range. Cables kept in cold or hot storage stay within specification, but they must return to the commercial range before service.

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DataSheet Downloads

  • SFP-H25G-CU5M Datasheet