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Optics Transceivers | SFP Modules
1/2/4G Transceiver Modules
2.5G SFP

2.5G SFP

Shop LINK-PP compatible 2.5G SFP modules for access, OC-48/STM-16-class, Fibre Channel, and multi-rate edge links. This niche store groups 2.5G optical SFPs (850 nm MMF, 1310/1550 nm SMF reaches) plus related 2.5GBASE-T copper options—EEPROM-coded for Cisco, Juniper, H3C, and other platforms. Return to 1G SFP or 10G SFP+ when those rates fit better, or the parent optics hub for the full catalog. Match host port rate licensing, protocol type, fiber plant, and rated reach on each product page before ordering.

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Frequently asked questions

01.What applications use 2.5G SFP modules?
2.5G SFPs appear on multi-rate access ports, SONET/SDH OC-48 / STM-16 class optics, some Fibre Channel 2G links, and newer 2.5GBASE-T copper uplinks. Confirm the host port’s supported rates and protocol (Ethernet vs FC vs SONET framing) before selecting a SKU.
02.How do I choose 850 nm vs 1310 nm vs 1550 nm vs copper?
Use 850 nm duplex LC multimode for short reaches (hundreds of meters), 1310 nm SMF for common 2–40 km class links, and 1550 nm SMF for longer ~80 km spans. Choose 2.5GBASE-T (RJ45) when the far end is copper Cat cable within ~100 m—optical and copper SKUs are not interchangeable.
03.Will a 2.5G SFP work in a 1G or 10G cage?
Mechanically many SFPs share the cage, but speed and EEPROM behavior are host-dependent. A 1G-only port may not train at 2.5G; a 10G SFP+ port may reject a 2.5G-only optic. Prefer the rate your switch/NIC datasheet lists, or use 1G SFP / 10G SFP+ when those standards apply.
04.Are these 2.5G modules coded for Cisco and Juniper?
Yes—select the Compatible PN that matches your OEM platform. LINK-PP 2.5G SFPs follow MSA electrical/optical specs and are EEPROM-coded for the target brand. Browse the Cisco compatible hub when you already have the OEM part number.
05.Do LINK-PP 2.5G optics support DOM?
Most optical 2.5G SKUs support digital optical monitoring (DOM/DDM) for temperature, voltage, and Tx/Rx power per the datasheet. Copper 2.5GBASE-T modules do not use optical DOM—confirm monitoring, temperature range, and rated reach on the individual PDP before you order.

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