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Shop›USB Cables & Adapters›StarTech.com Cisco QSFP-H40G-CU5M Compatible 5m 40G QSFP+ to QSFP+ Direct Attach Cable Twinax - 40GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC Firepower C9200 C9400
StarTech.com Cisco QSFP-H40G-CU5M Compatible 5m 40G QSFP+ to QSFP+ Direct Attach Cable Twinax - 40GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC Firepower C9200 C9400
£32.58
£39.10 inc. VAT
Low Stock(6)MPN: QSFPH40GCU5M
🚚 Next-day delivery £4.95
Quantity:1
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Key Features
StarTech.com Cisco QSFP-H40G-CU5M Compatible 5m 40G QSFP+ to QSFP+ DAC Twinax, 40GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC, Cisco Firepower C9200, QSFP+ Cable
Lifetime Warranty (QSFPH40GCU5M)
Direct attach cable
QSFP+ to QSFP+
5 m
twinaxial
SFF-8436
passive
Product Overview
AI-generated summary
This is a pretty straightforward, no-drama DAC: passive twinax, 40GbE QSFP+ to QSFP+ at 5m, and it’s priced like a “fill-the-gap” cable rather than a premium Cisco-branded item. At ~£32 ex-VAT you’re getting decent value if you know your optics/copper requirements and the distance is bang on. For UK datacentres, 5m is a very common short-run use case—top-of-rack to switch, switch-to-switch in the same rack row—so long as your switches support 40G QSFP+ DACs and the port isn’t picky about compatibility.
Who should buy: teams standardising on QSFP+ 40GbE and wanting to keep costs down on short interconnects, especially for Firepower/Cisco 9000-series style environments where “it just has to work” matters more than fancy cables. Who should not: if you need longer reach, higher tolerance, or you’re unsure whether your exact model/port will handshake cleanly—DACs are usually fine, but incompatible transceivers/cables can waste time fast. If you’re buying this just because it’s cheap, make sure it’s truly within spec for your switch and cabling path; otherwise you’re better off paying a bit more for something you’ve already validated in your setup.
Specifications
Features
Cable length5 m
InfiniBand protocolY
Connector 1QSFP+
Connector 2QSFP+
Connector 1 genderMale connector
Certificates
Compliance certificatesRoHS
CertificationCE, FCC, REACH
Operational conditions
Operating temperature (T-T)0 - 70 °C
Storage temperature (T-T)-40 - 80 °C
Weight & dimensions
Weight451 g
Packaging data
Package width250 mm
Package depth317 mm
Package height25 mm
Package weight458 g
Packaging content
Quantity per pack1 pc(s)
Logistics data
Master (outer) case width255 mm
Harmonized System (HS) code84733080
Master (outer) case length344 mm
Master (outer) case height295 mm
Products per master (outer) case10 pc(s)
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