Network Transceiver Modules Price Comparison 2026

Network transceiver modules for scalable fibre and copper links

Network transceiver modules — also called optical transceivers, pluggable optics or simply SFP/QSFP modules — let you adapt switch and router ports to the exact speed and medium you need. From 1G SFP to 10G SFP+, 25G SFP28 and 100G QSFP28, these hot‑pluggable modules make it easy to extend, upgrade or right‑size links across UK offices, campuses and data centres without replacing core hardware.

Why use network transceiver modules?

They offer a flexible, cost‑effective path to higher bandwidth and longer distances while keeping downtime low. Choose multimode SR optics for short in‑rack or cross‑floor links, single‑mode LR for longer campus or metro spans, or RJ45 copper transceivers for simple patching up to 100 m. Because modules follow open MSAs, you can standardise on the speeds and reaches you need, control spend, and maintain predictable performance over time.

Available options and how to choose the right transceiver

Start with the port speed you must support — 1G (SFP), 10G (SFP+), 25G (SFP28), 40G (QSFP+), or 100G (QSFP28). Match the module to your fibre type and distance: SR (multimode, up to ~300 m on OM3/OM4), LR (single‑mode, typically up to 10 km), and higher‑reach variants for specific use cases. RJ45 copper SFPs are ideal for short, low‑complexity links and can be a budget‑friendly alternative to fibre where appropriate.

Consider practical features that affect reliability and total cost: DDM/DOM for live monitoring, temperature ratings for challenging environments, connector type (LC duplex is most common), and power draw. If you are expanding ports or adding uplinks, it can be helpful to review complementary Network Switch Modules and essential Network Switch Components to keep your stack consistent.

See also

• Network Switch Components
• PoE Adapters
• Network Splitters
• Network Switch Modules
• Network Transceiver Modules
• Network Antenna Accessories
• Wireless Access Point Accessories
• Network Equipment Spare Parts

FAQ

How do I get the best price on network transceiver modules in the UK?

Match the module exactly to your need (speed, reach, fibre type) to avoid over‑spec. For short intra‑rack links, multimode SR optics are usually the best value; choose LR single‑mode only when distance requires it. Buying in the right quantities, using standards‑compliant MSAs, and consolidating to common connector types (e.g., LC) also helps reduce total cost.

Are cheap fibre optic transceiver modules reliable?

Yes — provided they follow recognised MSAs, pass optics testing and offer DDM/DOM for monitoring. Reliability depends on quality control, correct pairing (both ends must match type and speed) and environmental fit (temperature/power). Cheap does not need to mean risky if the specification is right for the job.

SFP vs SFP+ vs SFP28 vs QSFP28: which transceiver should I choose?

Pick based on bandwidth and port type: SFP (1G), SFP+ (10G), SFP28 (25G) and QSFP28 (100G). If you are aggregating many 10/25G links to the core, QSFP28 is common at 100G. For access and server links, SFP+ (10G) or SFP28 (25G) is typically the sweet spot.

What affects the price of a transceiver module (SR/LR/ER; single‑mode vs multimode)?

Key drivers include speed (higher = more expensive), reach (LR/ER optics cost more than SR), fibre type (single‑mode components are usually pricier), form factor, and power class. Features such as extended temperature ratings and DDM/DOM can also influence price.

Can I use RJ45 copper SFPs instead of fibre to keep costs low?

For short runs up to 100 m, RJ45 copper SFPs can be a low‑cost, simple option and avoid new fibre runs. Note that copper modules often draw more power and can run hotter than optical SR modules; ensure your switch supports them and that power/thermal budgets are acceptable.

How far will SR and LR optics reach, and what's the cheapest option for short links?

SR multimode optics typically cover up to around 300 m on OM3/OM4, making them the cheapest choice for short, in‑building links. LR single‑mode optics usually reach up to 10 km and are ideal when distance demands it; they cost more but are necessary beyond multimode limits.

Do I need DDM/DOM monitoring, and does it change the price?

DDM/DOM provides real‑time optics metrics (power, temperature, voltage) and is valuable for troubleshooting and uptime. It can carry a small price premium, but the operational visibility often saves money by speeding up fault isolation and preventing unnecessary replacements.