StarTech.com Cisco QSFP-H40G-CU3M Compatible 3m 40G QSFP+ to QSFP+ Direct Attach Cable Twinax - 40GbE QSFP+ Copper DAC 40 Gbps Low Power Passive Transceiver Module DAC Firepower C9200 C9400

Manufacturer: STARTECH - INDUSTRIAL IO | Model: QSFPH40GCU3M | Product ID: 9531 | Warranty: Lifetime
£36.85 (inc. VAT)
Availability: 0 in stock

Product Technical Specification

Features
Cable length3
Connector 1QSFP+
Connector 2QSFP+
Connector 1 genderMale connector
Connector 2 genderMale connector
Product colourBlack
Data transfer rate40000
Jacket materialPolyvinyl chloride (PVC)
Plug and PlayYes
CertificationCE, FCC
Technical details
Sustainability certificatesRoHS
Compliance certificatesRoHS
Operational conditions
Operating temperature (T-T)0 - 70
Storage temperature (T-T)-40 - 80
Weight & dimensions
Weight261
Packaging data
Quantity per pack1
Package width207
Package depth230
Package height20
Package weight268
Logistics data
Master (outer) case width255
Harmonized System (HS) code84733080
Master (outer) case length344
Master (outer) case height295
Products per master (outer) case10

Delivery Options

Economy Delivery
FREE
Economy Delivery

Economy Delivery (UK)

Estimated delivery date: Wed 26th Aug 2026 to Sat 29th Aug 2026
Fast & Tracked by Courier
£6.95
Fast & Tracked by Courier

Fast & Tracked by Courier (UK)

Estimated delivery date: Tue 25th Aug 2026 to Thu 27th Aug 2026
View all Delivery Options & International Rates
Copper QSFP+ Cable | 40 Gbps | Passive DAC | Lifetime Warranty

The QSFPH40GCU3M is a Cisco QSFP-H40G-CU3M compatible direct-attach copper QSFP+ cable that’s designed, programmed and tested to work with Cisco brand compatible switches and routers and complies with MSA industry standards.

This passive Twinax copper cable supports 40 Gigabit Ethernet applications connected through QSFP+ (Mini-GBIC) ports. This copper QSFP+ cable is hot-swappable, making upgrades and replacements seamless by minimizing network disruptions.

Designed for high-speed performance, this low-power, low-latency QSFP+ cable is a cost-effective alternative to fiber-optic cable assemblies, supporting short-distance applications such as point-to-point in-rack network switch or server connections.

StarTech.com SFP Cables

All StarTech.com SFP & SFP+ cables are backed by a lifetime warranty and free lifetime multilingual technical support. StarTech.com offers a wide variety of direct-attach SFP cables and SFP modules, providing the convenience and reliability you need to ensure dependable network performance.

The StarTech.com Advantage

- 100% CISCO QSFP-H40G-CU3M COMPATIBLE: Works with Cisco switches like C9300, C9200, C9400, C9500, C9600 and others
- TECHNICAL SPECS: 3m (9.8ft)
- 40 Gbps
Features
Cable length3
Connector 1QSFP+
Connector 2QSFP+
Connector 1 genderMale connector
Connector 2 genderMale connector
Product colourBlack
Data transfer rate40000
Jacket materialPolyvinyl chloride (PVC)
Plug and PlayYes
CertificationCE, FCC
Technical details
Sustainability certificatesRoHS
Compliance certificatesRoHS
Operational conditions
Operating temperature (T-T)0 - 70
Storage temperature (T-T)-40 - 80
Weight & dimensions
Weight261
Packaging data
Quantity per pack1
Package width207
Package depth230
Package height20
Package weight268
Logistics data
Master (outer) case width255
Harmonized System (HS) code84733080
Master (outer) case length344
Master (outer) case height295
Products per master (outer) case10

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We will despatch your order the very same day if we receive cleared payment by 12:00 pm Mon-Fri.

These delivery estimates apply when you order up to 12:00 pm Mon-Fri (excluding public holidays).

We charge a one off delivery cost as outlined below regardless of how many items you order or the weight of your order.

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Our available delivery options*

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Buykingston offers a simple, hassle-free returns policy. If for whatever reason you are not happy with the item purchased, you can return it to us within 14 days of receipt for a refund. This applies to items purchased direct through Buykingston only.

Our 14 Day Returns Money Back Guarantee:
For items returned in resaleable condition, with all original packaging. If an item has been opened for inspection but shows signs of use beyond that, a deduction may apply to reflect the reduced value — see our full Terms & Conditions (Section 12) for details.

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Returns FAQs

What is your returns criteria?
14 days from date of receipt, or expected date of receipt on non-tracked items.

How do I go about returning my order?
Please contact us via our contact page with your order number. We will provide you with an RMA number and return instructions, including your return deadline and whether a freepost label applies to your order.

Do I need to contact you before returning my order?
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Does my item have to include its original packaging?
Yes, to qualify for our 14 day money-back guarantee. For faulty items, we understand you may no longer have the original packaging.

Who pays for return postage?
If your item is faulty, damaged, or not as described, we cover reasonable return postage, or provide a freepost label where available. If you are returning an item for another reason (including simply changing your mind), you are responsible for return postage unless we have expressly confirmed a freepost label in your RMA email — we recommend using a tracked and insured service for items of significant value.

Who deals with the warranty on a faulty item?
We will. In some circumstances we may ask you to contact the manufacturer directly for assistance.

Please ensure you have read and comply in full with Sections 11–13 of our Terms & Conditions.