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18 Mar, 2026
Shop›Switch Tranceivers (GBIC/SFP)›Lenovo 1000BASE-SX SFP network transceiver module Fiber optic 1000 Mbit/s 850 nm
Lenovo 1000BASE-SX SFP network transceiver module Fiber optic 1000 Mbit/s 850 nm
£161.69
£194.03 inc. VAT
Out of Stock(0)MPN: 81Y1622
🚚 Next-day delivery £4.95
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Key Features
Lenovo
SFP (mini-GBIC) transceiver module
1GbE
1000Base-SX
LC
for Flex System SI4091
Product Overview
AI-generated summary
If you’re shopping for a straightforward 1GbE SX SFP for short-range fibre links, this Lenovo-branded module is the kind of “just works” purchase you want—assuming it matches the exact switch model and coding your kit expects. At £161.69 ex-VAT it’s not what I’d call bargain-bin pricing, so I’d only buy it if you actually need compatibility (not “compatible-ish”) and you’re building something reliable rather than experimenting. Lenovo optics are usually fine for typical enterprise fibre runs and get you out of the “will it negotiate/behave correctly?” hassle that sometimes comes with cheaper generics.
Who should buy it: IT teams refreshing a known Lenovo switch/router environment, data rooms with multimode 850nm short-haul links, or anyone replacing a failed/required optic where uptime matters and returns are a pain. Who should think twice: if you’re mixing vendors, running edge-case hardware, or you’re pricing this against alternative third‑party optics—at this point the cost delta might justify testing or sourcing a lower-cost option *only if* you can confirm strict compatibility. If you tell me the exact switch model and your fibre type/length, I can sanity-check whether you’re paying the right price for the use case.
Specifications
Performance
SFP transceiver typeFiber optic
Maximum data transfer rate1000 Mbit/s
Interface typeSFP
Multi-mode fiber (MMF) supportedY
Fiber optic connectorLC
Features
Hot-Plug supportY
Certificates
CertificationMSA
Operational conditions
Operating temperature (T-T)0 - 70 °C
Storage temperature (T-T)-40 - 85 °C
Operating relative humidity (H-H)10 - 80 %
Storage relative humidity (H-H)10 - 85 %
Weight & dimensions
Width13.4 mm
Depth56.5 mm
Height8.5 mm
Logistics data
Harmonized System (HS) code85369010
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