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Shop›USB Cables & Adapters›StarTech.com Brocade 40G-QSFP-SR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM
StarTech.com Brocade 40G-QSFP-SR4 Compatible QSFP+ Module - 40GBASE-SR4 - 40GbE Multimode Fiber MMF Optic Transceiver - 40GE Gigabit Ethernet QSFP+ - MPO 150m - 850nm - DDM
£31.88
£38.26 inc. VAT
Out of Stock(0)MPN: 40G-QSFP-SR4-ST
🚚 Next-day delivery £4.95
Quantity:1
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Key Features
StarTech.com Brocade 40G-QSFP-SR4 Compatible QSFP+ Module, 40GBASE-SR4, 40GbE Multimode Fiber MMF Optic Transceiver, 40GE Gigabit Ethernet QSFP+, MPO Connector, 150m, 850nm, DDM, Mini GBIC
Lifetime Warranty (40G-QSFP-SR4-ST)
QSFP+ transceiver module (equivalent to: Brocade 40G-QSFP-SR4)
40GbE
40GBASE-SR4
MPO multi-mode
up to 150 m
850 nm
Product Overview
AI-generated summary
For £31.93 ex-VAT, this is the sort of QSFP+ 40GbE multimode optic you buy when you already know the link distance and you just want it to work—fast. If you’ve got Brocade gear and you need short‑reach connectivity over OM3/OM4-style fibre, this kind of module can be genuinely good value, especially compared to the usual “proper” OEM pricing. The DDM bit is also helpful in day-to-day operations because it gives you visibility into laser power/temps so you’re not flying blind.
That said, I wouldn’t buy it if you’re chasing compatibility across mixed vendors or unknown switch models. Even when a product is marketed as “compatible,” performance and provisioning can be picky—wrong optics type, mismatched fibre class, or a switch that’s strict about vendor IDs can turn a cheap module into a troubleshooting project. This also isn’t a “one module fits all distances” solution; it’s intended for a particular multimode reach. If your environment is stable (same switch family, correct multimode fibre, target distance fits), it’s a sensible buy. If not, spend a bit more on the optics you’re certain your exact hardware will accept and you’ll save time in the long run.
Specifications
Performance
SFP transceiver typeFiber optic
Maximum data transfer rate40000 Mbit/s
Interface typeQSFP+
Multi-mode fiber (MMF) supportedY
Fiber optic connectorMPO
Features
Product colourSilver
Hot-swapY
Mean time between failures (MTBF)244610583 h
Brand compatibilityBrocade
Compatible products40G-QSFP-SR4
Certificates
CertificationCE, FCC, UR
Weight & dimensions
Width122 mm
Depth18.6 mm
Height8.5 mm
Weight37.5 g
Packaging content
Quantity per pack1 pc(s)
Packaging data
Package width125 mm
Package depth185 mm
Package height48 mm
Package weight50 g
Logistics data
Master (outer) case width215 mm
Master (outer) case length330 mm
Harmonized System (HS) code85369010
Master (outer) case height360 mm
Products per master (outer) case10 pc(s)
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