QSFP-H40G-CU5M – 40G QSFP DAC – 5m Length – Passive Copper Cable
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QSFP-H40G-CU5M Description
The QSFP-H40G-CU5M is a Cisco 40GBASE-CR4 QSFP+ passive direct-attach copper cable for 40 Gigabit Ethernet links between QSFP ports in the same rack or in adjacent racks. The 5 m cable uses 26 AWG conductors, a 9 mm QSFP-end diameter and a 50 mm bend radius, with a gray pull tab and a 0 to 70 C operating range. It is a straight QSFP-to-QSFP cable, not a breakout that splits one port into four 10G SFP+ ends.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
QSFP-H40G-CU5M |
|
Product type |
40GBASE-CR4 QSFP+ passive direct-attach copper cable |
|
Cable assembly type |
Direct-attach copper cable assembly |
|
Interface role |
QSFP-to-QSFP 40G copper cable |
|
Data rate |
40 Gigabit Ethernet |
|
Cable length |
5 meters |
|
Host interface |
Cisco QSFP 40G port |
|
Pull tab color |
Gray |
|
AWG |
26 |
|
QSFP-end cable diameter |
9 mm |
|
QSFP-end bend radius |
50 mm |
Application Scenarios
Where two racks stand side by side, the cable connects a top-of-rack switch to an aggregation switch across the gap at 40 Gigabit Ethernet and needs no separate transceivers.
At the 5 m limit of passive copper, the cable serves routes in a cabinet row where the path is too long for 3 m cables but still short enough to avoid active electronics.
Product Comparison
|
Parameter |
QSFP-H40G-CU5M |
QSFP-H40G-ACU7M |
QSFP-4SFP10G-CU5M | |
|---|---|---|---|---|
|
Cable type |
Passive copper direct-attach |
Passive copper direct-attach |
Active copper direct-attach |
Passive copper breakout, QSFP to four SFP+ |
|
Cable length |
5 meters |
3 meters |
7 meters |
5 meters |
|
AWG |
26 |
30 |
26 |
26 |
|
QSFP-end cable diameter |
9 mm |
7 mm |
9 mm |
9 mm |
|
Power consumption |
Not published |
Not published |
1.5 W at each end |
Not published |
|
Operating temperature |
0 to 70 C |
0 to 70 C |
0 to 70 C |
0 to 70 C |
QSFP-H40G-CU5M is the longest passive 40GBASE-CR4 copper cable in this group at 5 m, with 26 AWG and a 9 mm QSFP-end diameter against 30 AWG and 7 mm on the 3 m QSFP-H40G-CU3M, which is the thinner choice for runs of 3 m or less. A run beyond 5 m needs the active QSFP-H40G-ACU7M, which draws 1.5 W at each end, because passive copper ends at 5 m. QSFP-4SFP10G-CU5M has the same 5 m length and gray tab but splits one QSFP end into four SFP+ copper ends, so it suits 10G server ports rather than a QSFP-to-QSFP link.
Ordering Checklist
- Host support: Confirm the target Cisco switch or line card and its QSFP+ port are listed for QSFP-H40G-CU5M in the Cisco Optics-to-Device Compatibility Matrix. A cable that fits the QSFP cage can still be unsupported on a given host.
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | QSFP-H40G-CU5M | Product type | 40GBASE-CR4 QSFP+ passive direct-attach copper cable |
| Cisco ordering description | Cisco 40GBASE-CR4 QSFP+ passive direct-attach copper transceiver module assembly, 5 meter | Cable assembly type | Direct-attach copper cable assembly |
| Interface role | QSFP-to-QSFP 40G copper cable | Data rate | 40 Gigabit Ethernet |
| Cable length | 5 meters | Host interface | Cisco QSFP 40G port |
| Pull tab color | Gray | AWG | 26 |
| QSFP-end cable diameter | 9 mm | QSFP-end bend radius | 50 mm |
| QSFP-end face plate distance | 100 mm | Jacket material | PVC |
| Jacket color | Black | QSFP connector module dimensions | 13.5 x 18.4 x 72.4 mm maximum outer dimensions |
| QSFP connector module weight | 100 grams or less | Operating temperature | 0 to 70°C |
| Storage temperature | -40 to 85°C | Standards references | IEEE 802.3ba and QSFP+ MSA SFF-8436 |
| Copper cable jacket safety | UL E116441 compliant | Copper cable electrical safety | ELV compliant |
| Compatibility reference | Cisco 40-Gigabit Ethernet Transceiver Modules Compatibility Matrix |
Get More Information
Need pricing, stock, or shipping details for the QSFP-H40G-CU5M ? Layer23-Switch can help you check current availability, lead time, and delivery options for this. Send us the part number, quantity, and destination country via live chat or email [email protected] for a fast quotation.
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Customer Reviews
Questions & Answers
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Where does passive copper end for QSFP-H40G-CU5M, and what covers longer runs?
-
What storage temperature range applies to QSFP-H40G-CU5M?
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How much face plate distance does QSFP-H40G-CU5M need?
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Which safety listings does QSFP-H40G-CU5M carry?
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