Cisco QSFP-H40G-CU3M 40GBASE-CR4 QSFP Passive Direct Attach Copper Cable 3M
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.
Cisco QSFP-H40G-CU3M 40GBASE-CR4 QSFP Passive Direct Attach Copper Cable (3 Meter)
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.
Product Highlights
- Vendor: Cisco
- MPN: QSFP-H40G-CU3M
- Product Type: Optics / Direct Attach Copper (DAC) Cable
- Condition: New
- 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+
- Low power consumption — no active electronics required
- Plug-and-play compatibility with Cisco QSFP+-enabled platforms
- Fully compliant with IEEE 802.3ba 40GbE standards
Why Choose WhaleyComm?
At WhaleyComm, every unit we ship is thoroughly tested to factory specification before it leaves our facility. We've been serving enterprise networking professionals for over 25 years, building a trusted reputation with 5,000+ customers worldwide. When you order from WhaleyComm, you're not just buying hardware — you're buying confidence.
Lifetime Warranty
No Time Limits. No Questions Asked. Every WhaleyComm unit ships with a Lifetime Warranty. If your Cisco QSFP-H40G-CU3M fails under normal operating conditions at any point — whether that's 2 years or 20 years from now — we replace it. Period. That's the WhaleyComm guarantee.
Shipping & Returns
- Shipping: Orders ship within 1–2 business days from our warehouse.
- Returns: Contact our support team for any DOA (Dead on Arrival) or warranty-related issues. We make it right — fast.
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
Whether you're building out a new data center fabric, upgrading your spine-leaf architecture, or simply replacing a failed cable, the Cisco QSFP-H40G-CU3M from WhaleyComm delivers the performance, reliability, and value your network demands. Order today and experience the WhaleyComm difference.
