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Cisco QSFP-40G-CSR4 40GB BASE-CSR4 850nm MMF QSFP+ Transceiver

Cisco QSFP-40G-CSR4 40GB BASE-CSR4 850nm MMF QSFP+ Transceiver

$ 47.99
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-5424
UPC: 882658525520


The Cisco QSFP-40G-CSR4 is a 40GBASE-CSR4 transceiver designed for use with multi-mode fiber (MMF) networks. Operating at an 850nm wavelength, this QSFP+ module supports Ethernet connections up to 40 gigabits per second at speeds over distances of up to 400 meters.

This hot-pluggable and compact form factor solution offers efficient performance in data centers and high-density environments. It complies with the IEEE standards for compatibility and interoperability, ensuring seamless integration into existing network infrastructures.

With its four parallel optical channels utilizing multimode fiber technology, the QSFP-40G CSR4 enables reliable connectivity while maximizing bandwidth utilization. This versatile transceiver facilitates cost-effective upgrades from lower-speed interfaces like SFP+ or X2 modules without requiring major infrastructure changes.

Cisco QSFP-40G-CSR4: 40GBASE-CSR4, 4 lanes, 850 nm MMF, connector type MPO-12.


  • Form Factor : QSFP+ Transceiver - 40GBASE-CSR4
  • Speed : 40 Gbps
  • Wavelength : 850nm
  • Cable Type : MMF
  • Connection Type : MPO-12, 4 lanes
  • Cable Distance : 82m, 300m, 400m
  • Model Number : QSFP-40G-CSR4
  • Part Number : QSFP-40G-CSR4, QSFP-40G-CSR4=, QSFP-40G-CSR4-WS
  • Condition : Seller refurbished


  • One (1) Seller Refurbished Cisco QSFP-40G-CSR4 40GB BASE-CSR4 850nm MMF 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