QSFP-100G-CU5M – 100G QSFP DAC – 5m Length – Passive Copper Cable
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QSFP-100G-CU5M Description
QSFP-100G-CU5M is a Cisco 100GBASE-CR4 QSFP passive copper direct-attach cable for short 100 Gigabit Ethernet QSFP-to-QSFP links in switch and module BOMs. This 5-meter cable assembly uses passive copper media, draws 1.5W per end, and is identified by a gray pull tab, 9 mm cable diameter, and 70 mm bend radius for rack-level port matching where a Cisco-qualified 100G direct-attach copper connection is required.
Quick Specs
|
Parameter |
Specification |
|---|---|
|
Product ID |
QSFP-100G-CU5M |
|
Product type |
100GBASE-CR4 QSFP passive copper cable |
|
Ordering description |
Cisco 100GBASE-CR4 QSFP Passive Copper Cable, 5-meter |
|
Cable assembly type |
Direct-attach copper cable assembly |
|
Interface role |
QSFP-to-QSFP 100G direct-attach cable |
|
Supported Ethernet rate |
100 Gigabit Ethernet |
|
Cable length |
5 meters |
|
Power consumption |
1.5W per end |
|
Pull tab color |
Gray |
|
Cable diameter |
9 mm |
|
Bend radius |
70 mm |
Application Scenarios
Deploy QSFP-100G-CU5M where the two Cisco QSFP-100G ports are still within a passive copper DAC distance but a 3-meter cable is not enough after routing through managers or vertical paths. The fixed length should be measured on the planned route rather than estimated from cabinet spacing.
This SKU is useful when a bill of materials keeps the link as a straight 100G QSFP-to-QSFP copper connection. It should not be mixed with QSFP-to-SFP25 breakout cables or active optical cable SKUs during order review because those families serve different cabling designs.
Warehouse teams can separate QSFP-100G-CU5M from nearby Cisco copper lengths by the 5-meter description and gray pull tab. The 9 mm cable diameter and 70 mm bend radius also make this longer copper cable different from the shorter 1-meter, 2-meter, and 3-meter DACs.
Product Comparison
|
Parameter |
QSFP-100G-CU5M |
QSFP-100G-CU2M |
QSFP-100G-AOC5M | |
|---|---|---|---|---|
|
Product type |
100GBASE-CR4 QSFP passive copper cable |
100GBASE-CR4 QSFP passive copper cable |
100GBASE-CR4 QSFP passive copper cable |
100GBASE QSFP active optical cable |
|
Cable assembly type |
Direct-attach copper cable assembly |
Direct-attach copper cable assembly |
Direct-attach copper cable assembly |
Active optical cable assembly |
|
Interface role |
QSFP-to-QSFP 100G cable |
QSFP-to-QSFP 100G cable |
QSFP-to-QSFP 100G cable |
QSFP-to-QSFP 100G cable |
|
Supported Ethernet rate |
100 Gigabit Ethernet |
100 Gigabit Ethernet |
100 Gigabit Ethernet |
100 Gigabit Ethernet |
|
Cable length |
5 meters |
2 meters |
3 meters |
5 meters |
|
Power consumption |
1.5W per end |
1.5W per end |
1.5W per end |
3.5W per end |
|
Pull tab color |
Gray |
Brown |
Orange |
Orange |
|
Cable diameter |
9 mm |
7 mm |
7 mm |
3.5 mm |
|
Bend radius |
70 mm |
50 mm |
50 mm |
30 mm |
- In a QSFP-100G-CU5M vs QSFP-100G-CU3M comparison, the key difference is length: QSFP-100G-CU5M is the 5-meter passive copper option while QSFP-100G-CU3M is the 3-meter version.
- The QSFP-100G-CU5M difference from QSFP-100G-CU2M also includes the documented physical routing values; the 5-meter cable uses a 9 mm diameter and 70 mm bend radius instead of 7 mm and 50 mm.
- QSFP-100G-CU5M vs QSFP-100G-AOC5M is a copper-versus-active-optical comparison at the same 5-meter length, with different cable assembly type, power draw, cable diameter, and bend radius.
- For which model to choose, start from the required 100G QSFP-to-QSFP role, then confirm whether the project needs passive copper at 5 meters or a different Cisco cable family.
Selection Guide
1. Choose it for a measured 5-meter copper path
Select QSFP-100G-CU5M when the cable route between two QSFP-100G ports needs 5 meters and passive copper is the specified medium in the bill of materials.
2. Stay with shorter CU models when the route is shorter
Use QSFP-100G-CU2M or QSFP-100G-CU3M when the planned path fits those fixed lengths. Shorter copper versions keep the documented 7 mm diameter and 50 mm bend radius values.
3. Move to AOC only for the matching optical-cable requirement
Choose QSFP-100G-AOC5M only when the design calls for a 5-meter active optical cable assembly rather than a passive copper DAC.
4. Confirm Cisco host support before purchase
Check the target switch, router, line card, port type, and software release in Cisco compatibility documentation before adding QSFP-100G-CU5M to a quote.
Ordering Checklist
|
Check Item |
What to Confirm |
Why It Matters |
|---|---|---|
|
Exact Product ID |
QSFP-100G-CU5M |
Prevents substitution with shorter CU cables, AOC cables, or QSFP-to-SFP25 breakout SKUs |
|
Cable length |
5-meter fixed route with service slack |
Confirms the installed path can be dressed without exceeding the purchased length |
|
Interface role |
QSFP-to-QSFP 100G direct-attach cable |
Keeps the order aligned with a straight 100G link rather than a fanout design |
|
Host compatibility |
Cisco platform, line card, port type, and software release |
Verifies that the target hardware supports the exact cable SKU |
|
Physical routing |
9 mm cable diameter and 70 mm bend radius |
Helps installers reserve enough space in dense front-panel cable paths |
|
Receiving details |
Gray pull tab and 5-meter Cisco label |
Catches accidental replacement with a nearby Cisco QSFP-100G cable length |
Specifications
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Product ID | QSFP-100G-CU5M | Product type | 100GBASE-CR4 QSFP passive copper cable |
| Ordering description | Cisco 100GBASE-CR4 QSFP Passive Copper Cable, 5-meter | Cable assembly type | Direct-attach copper cable assembly |
| Interface role | QSFP-to-QSFP 100G direct-attach cable | Supported Ethernet rate | 100 Gigabit Ethernet |
| Cable length | 5 meters | Power consumption | 1.5W per end |
| Pull tab color | Gray | Cable diameter | 9 mm |
| Bend radius | 70 mm | QSFP connector module dimensions | 13.5 x 18.4 x 72.4 mm maximum outer dimensions |
| QSFP connector module weight | 100 grams or less | Commercial operating temperature | 0 to 70 degrees C |
| Storage temperature range | -40 to +85 degrees C | Standards references | SFF-8665, SFF-8636, IEEE 802.3-2022, IEEE 802.3ba, IEEE 802.3bm |
| Compliance reference | RoHS 6 | Copper cable jacket safety | UL E116441 compliant |
| Copper cable electrical safety | ELV compliant | Standard warranty | 5 years |
Get More Information
Need pricing, stock, or shipping details for the QSFP-100G-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 sales@layer23-switch.com for a fast quotation.
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Customer Reviews
Questions & Answers
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What is QSFP-100G-CU5M used for in 100G DAC links?
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Is QSFP-100G-CU5M an optical transceiver?
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How long is the QSFP-100G-CU5M passive copper cable?
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Where does QSFP-100G-CU5M fit better than 100G AOC?
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Does QSFP-100G-CU5M use LC or MPO connectors?
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Can QSFP-100G-CU5M connect two 100G switch ports?
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Is QSFP-100G-CU5M a breakout cable?
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What CR4 and rack airflow details matter for QSFP-100G-CU5M?
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