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Cisco QSFP-40G-SR4 40GB BASE-SR4 850nm MMF MPO-12 QSFP+ Transceiver

Cisco QSFP-40G-SR4 40GB BASE-SR4 850nm MMF MPO-12 QSFP+ Transceiver

$ 37.99
$ 29.99
Only 2 remaining
In stock means that we have the product available to meet your delivery commitment. If it is on the web site, it is available for sale and we can ship it that day.
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Cutoff Ground / 3 day / 2 day - 2pm PT, Cutoff Overnight - 5pm PT. Overnight orders after 4pm PT require approval. Call 800-430-6950 to confirm overnight orders after 4pm PT.
Condition: Seller refurbished
Pre-owned, tested by qualified techs, working, reset-to-factory default, grade A condition, and parts needed for normal functions are included (as described in the listing).
Warranty: 365 days
Warranty coverage period
SKU: NSH-7992
UPC: 882658439759


The Cisco QSFP-40G-SR4 is a high-performance 40GBASE-SR4 transceiver for short-range data center applications. It operates at an optical wavelength of 850nm and uses multi-mode fiber (MMF) with MPO-12 connectors, enabling easy deployment in modern network infrastructures.

This compact QSFP+ transceiver provides four independent transmit and receive channels, delivering reliable data transmission over distances up to 150 meters using OM3 MMF or up to 100 meters using OM4 MMF. Its low power consumption and hot-pluggable design offer seamless integration into compatible devices without disruptions.

Engineered by Cisco Systems, this product meets all industry quality assurance and compatibility standards. Its robust build ensures stable performance even under challenging conditions, making it ideal for demanding environments like enterprise networks or cloud-based architectures.

Cisco QSFP-40G-SR4: 40GBASE-SR4, 4 lanes, 850 nm MMF MPO-12.


  • Form Factor : QSFP Transceiver (Plug-in Module)
  • Speed : 40 Gbps
  • Wavelength : 850 nm
  • Cable Type : MMF
  • Connection Type : MTP/MPO-12 Male
  • Cable Distance : 150m @ OM4/ 100m @ OM3
  • Model Number : QSFP-40G-SR4
  • Part Number : QSFP-40G-SR4=, QSFP-40G-SR4, QSFP-40G-SR4-WS
  • Condition : Seller refurbished


  • One (1) Seller Refurbished Cisco QSFP-40G-SR4 40GB BASE-SR4 850nm MMF MPO-12 QSFP+ Transceiver as described above

Not Included

  • Manuals or product brochures are not included. Software or Firmware DVDs or CDs are not included
    Product information and installation instructions may be found on the manufacturer's website or the web. Software or firmware updates may be available through the manufacturer's website