Description
About Cisco QSFP-H40G-CU4M Transceiver Modules
Product Description
| Feature | Specification |
|---|---|
| Type | QSFP+ Direct Attach Copper (DAC) Cable |
| Data Rate | 40 Gigabit Ethernet (40 Gbps) |
| Standards | 40GBASE-CR4 |
| Reach | 4 meters |
| Connector | QSFP+ |
| Jacket Material | PVC |
| Jacket Color | Black |
| AWG Wire Gauge | 26 |
| Property | Value |
|---|---|
| Product Code | QSFP-H40G-CU4M |
| Description | Cisco 40GBASE-CR4 QSFP direct-attach copper cable, 4-meter, passive |
| Dimensions | 13.5 x 18.4 x 72.4 mm |
| Wavelength (nm) | – |
| Cable Type | Direct-attach copper cable assembly |
| Core Size (microns) | – |
| Modal Bandwidth (MHz-km) | – |
| Cable Distance | 4m |
| Power Consumption (W) | 1.5 |
| Pull Tab Color | Orange |
| Property | Value |
|---|---|
| Product Code | Likely QSFP-H40G-CU4M (not officially specified) |
| Description | Cisco 40GBASE-CR4 QSFP direct-attach copper cable, 4-meter, passive |
| Dimensions | 13.5 x 18.4 x 72.4 mm |
| Wavelength (nm) | – |
| Cable Type | Direct-attach copper cable assembly |
| Core Size (microns) | – |
| Modal Bandwidth (MHz-km) | – |
| Cable Distance | 4m |
| Power Consumption (W) | 1.5 |
| Pull Tab Color | Orange |
| Environmental conditions | |
| Commercial temperature | 0 to 70°C (32 to 158°F) |
| Storage temperature | -40 to 85°C (-40 to 185°F) |
| Regulatory and standards compliance | |
| Standards | GR-20-CORE, GR-326-CORE, GR-1435-CORE, IEEE 802.3ba (-SR4, -LR4), IEEE 802.3ae (-CSR4), QSFP+ MSA SFF-8436, SFP+ MSA SFF-8431 and -8461, RoHS 6 |
| Safety | Cable jacket UL E116441 Compliant, ELV Compliant |
Description
The Cisco QSFP-H40G-CU4M is a 40 Gigabit Ethernet (40 Gbps) QSFP+ Direct Attach Copper (DAC) cable designed for short-distance connections within a rack or between adjacent racks. It uses four copper twinax cables to transmit data and supports the 40GBASE-CR4 standard.
DACs are a cost-effective solution for short-distance connections compared to fiber optic cables. They are also easier to install and require less power. However, DACs have a shorter reach than fiber optic cables.
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