NEW
Cisco QSFP-H40G-CU3M New Optics WhaleyComm
Cisco

Cisco QSFP-H40G-CU3M 40GBASE-CR4 QSFP Passive Direct Attach Copper Cable 3M

MPN: QSFP-H40G-CU3M
Select Condition
$35.00
Sold Out
Request Bulk Quote
Questions before purchasing?
+1 214 607-4800
Mon–Fri 8am–6pm CST · Enterprise sales team
🛡️
Lifetime
Warranty
📋
ISO 9001
Certified Testing
♻️
R2v3
Responsible Refurb
25+
Years
5K+
Customers
ISO
Certified
✓
Tested

Every WhaleyComm unit is professionally tested, reset to factory defaults, and certified by our in-house engineers — the same standard trusted by 5,000+ organisations across 25 years. Not a refurb marketplace. A certified lifecycle partner.

Tested to factory specification. Backed by 25 years of enterprise trust.

The Cisco QSFP-H40G-CU3M is a high-performance 40GBASE-CR4 QSFP+ Passive Direct Attach Copper (DAC) cable designed for short-range, high-speed 40 Gigabit Ethernet connectivity. With a 3-meter reach, this passive DAC cable delivers reliable, low-latency interconnects between top-of-rack switches, routers, and servers — making it an ideal solution for modern data center environments, high-density deployments, and enterprise core networking.

As a genuine Cisco optics accessory (MPN: QSFP-H40G-CU3M), this cable is fully compatible with Cisco Nexus, Catalyst, and other QSFP+-enabled platforms, ensuring seamless integration and plug-and-play simplicity without the need for additional transceivers or power-hungry active components.

Technical Specifications
Model / MPN
QSFP-H40G-CU3M
Brand
Cisco
Product Type
Optics
Condition
New
Vendor
Cisco
MPN
QSFP-H40G-CU3M
Form Factor
QSFP+ (Quad Small Form-Factor Pluggable)
Speed
40GBASE-CR4 (40 Gigabit Ethernet)
Cable Type
Passive DAC (Direct Attach Copper)
Cable Length
3 Meters
Interface
QSFP+ to QSFP+
Ideal Use Cases
High-Speed Inter-Device Links
Optical uplinks between switches, routers, and servers at distance beyond copper.
Data Center Backbone
High-density optical backbone connectivity.
What's Included
✔ Cisco QSFP-H40G-CU3M New Optical Transceiver (1x)
✔ Protective dust caps installed
✔ WhaleyComm ISO 9001-certified inspection certificate
✔ WhaleyComm Lifetime Warranty
Lifetime Warranty — No Time Limits. No Questions.
Every WhaleyComm unit ships with a Lifetime Warranty. If it fails under normal operating conditions at any point, we replace it. No time limits, no expiration, no hidden conditions. Backed by 25 years and 5,000+ satisfied customers.
🔌
Compatibility Details
Review supported optics, cables, software, management protocols, and environment-specific compatibility guidance.
Compatible Platforms (Partial List)
✓
Cisco Nexus 3000, 5000, 6000, 7000, 9000 Series
✓
Cisco Catalyst 6500 / 6800 Series
✓
Cisco ASR Routers with QSFP+ line cards
✓
Any IEEE 802.3ba-compliant QSFP+ device
📦
Shipping & Returns
Clear fulfilment, tracking, return, warranty, and support information for enterprise hardware orders.
📦
Shipping
Orders ship within 1-2 business days from our facility in Texas. Overnight and expedited shipping available at checkout.
↩
Returns
Contact our support team for any DOA or warranty issues. Every WhaleyComm unit is covered by a Lifetime Warranty — we make it right, fast.
📦
Contact
+1 214 607-4800 | Mon-Fri 8am-6pm CST
?
Frequently Asked Questions
Product-specific answers about compatibility, testing, warranty, fulfilment, and purchase confidence.
This unit is sold as New and has never been deployed. It ships in original or equivalent packaging with a WhaleyComm Lifetime Warranty.
Yes. Every WhaleyComm unit ships with a Lifetime Warranty — no time limits, no questions asked. If your Cisco QSFP-H40G-CU3M fails under normal operating conditions at any point, we replace it at no cost.
Every unit goes through an ISO 9001-certified testing process: full power-on diagnostics, port-by-port functionality testing, firmware verification, factory reset, and final inspection. Backed by 25 years and 5,000+ enterprise customers.
Cisco QSFP-H40G-CU3M 40GBASE-CR4 QSFP Passive Direct Attach Copper Cable 3M
$35.00
Call Now