SFP Transceivers
SFP, SFP+, and QSFP transceivers from Cisco, HPE, Dell, and MSA-compliant brands — matched by speed, reach, and switch compatibility, at a fraction of OEM list price.
SFP, SFP+ & QSFP Transceivers
Transceivers are the small modules that turn a switch or NIC port into a working link — electrical on one side, optical or copper on the other. We stock tested SFP (1G), SFP+ (10G), SFP28 (25G), and QSFP+ (40G) modules from Cisco, HPE, Dell, Intel, and MSA-compliant brands at a fraction of OEM list price.
Matching a Transceiver
- Speed: the module sets the lane speed — 1G SFP, 10G SFP+, 25G SFP28, 40G QSFP+. Ports are often backward-compatible one step down, but check your switch documentation.
- Reach and media: SR optics cover in-rack and in-row runs over multimode fiber; LR reaches kilometers over single-mode; RJ45 copper modules and DAC cables handle short in-rack hops cheaply.
- Vendor coding: many switches expect their own brand’s coding — match the transceiver brand to the switch (Cisco to Cisco, HPE to HPE), or ask us to confirm compatibility before ordering.
- Both ends matter: the optic in the server NIC and the optic in the switch must agree on speed and wavelength.
Why Buy Transceivers from PCSP
- Link-tested before listing.
- Compatibility-checked against your switch and NIC on request.
- 90-day returns on DOA or non-conforming modules.
- Fast shipping: in-stock modules ship the same business day when ordered before 1:00 pm EST.
Building the network out further? Browse refurbished switches and networking gear and server network cards.
Quick Answers: Buying from PCSP
Will a Cisco-coded module work in my non-Cisco switch?
Usually not — most switches check the vendor coding on the module and reject or ignore foreign optics. Buy transceivers coded for the device they plug into: the switch brand on the switch side, the NIC brand on the server side. Unsure? Tell us both ends of the link and we will confirm before you order.
Can I put an SFP module in an SFP+ port?
Generally yes — most SFP+ ports accept a 1G SFP module and run that lane at 1G. The reverse does not work: a 10G SFP+ module will not run in a 1G-only SFP port. Check your switch documentation for the supported step-down combinations.
DAC cable or optics — what should I use for short runs?
Inside a rack, or up to roughly 3–5 meters, a DAC cable is the cheapest and simplest link — no separate transceivers needed. Between racks or rooms, use SR optics over multimode fiber; for kilometer-scale runs, LR over single-mode.
How are transceivers tested, and what if one does not link?
Every module is link-tested before listing. If a transceiver arrives dead or will not come up in matched hardware, 90-day returns cover it at our expense. In-stock modules ship the same business day on orders before 1:00 pm EST.