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Small black SFP28 transceiver module with LC ports, 0.03 pounds

Axiom

Axiom SM25G-SR-AX SFP28 Transceiver 25GBase-SR LC Multi-Mode 230 ft 850 nm

SKU CH-MSV8-WDKCC

SFP28 transceiver delivers 25 Gigabit LAN over LC multi-mode fibre up to 230 ft at 850 nm

  • Product typeTransceiver
  • Product weight0.03 lb (0.01 kg)
  • 25 Gbps throughput via SFP28 interface
  • LC duplex connector for multi-mode fibre links
  • 850 nm wavelength optimised for short-range runs
  • Reaches 230 ft over OM3/OM4 fibre
  • Weighs only 0.03 lb for dense deployments

25GBase-SR SFP28 for Chelsio gear

The Axiom SM25G-SR-AX is a 25 Gigabit LAN transceiver in the SFP28 form factor. It connects to LC multi-mode fibre at an 850 nm wavelength. The module is built as a direct equivalent to the Chelsio SM25G-SR part. It weighs 0.03 pounds.

Suits 25 GbE links on multi-mode fibre.

Network teams extending or repairing 25GBase-SR connections over LC multi-mode cable will find this drop-in replacement. Buyers who need single-mode reach or a different connector type should look at another module. The 230 ft distance limit also rules out longer campus runs.

Reach of 230 ft at 850 nm decides fit

The single specification that determines whether this transceiver works is the 230 ft maximum link length on multi-mode fibre at 850 nm. If the planned cable run stays within that distance the part matches; if the run exceeds it a different optic is required.

How it compares

Measured against everything we stock in SFP & SFP+ Transceiver Modules, at today’s prices. Recalculated every night.

Price $214.99
Pricier than about 62% of the 1,471 comparable items (median $138.99).

Specifications

Product
Brand nameAxiom
Model nameSM25G-SR-AX
Part numberSM25G-SR-AX
Product typeTransceiver
Size & build
Product weight0.03 lb (0.01 kg)

Questions about this item

How do I install the Axiom SM25G-SR-AX SFP28 transceiver into a Chelsio port?

Align the module with the SFP28 cage, push until the latch clicks, then insert the LC duplex patch cable; the step often missed is removing the dust caps from both the transceiver and cable ends before seating.

What maintenance or replacement will the SM25G-SR-AX need over time?

The module itself has no user-serviceable parts; plan to inspect and clean the LC ferrules with a fibre scope and click-to-clean tool whenever links show rising error counts, and replace the patch cord if polishing no longer restores loss budget.

What distance limit appears first on a sustained 25 Gb/s link with this 850 nm transceiver?

The 230 ft reach on OM3/OM4 multi-mode fibre is the binding constraint; beyond that the 850 nm VCSEL eye closes and bit errors rise regardless of cable quality.

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