The QSFP28-100G-CU5M is a 100Gbps passive direct attach copper (DAC) cable with QSFP28 connectors on both ends, designed for high-speed short-range connections. Operating at 4×25Gbps to deliver a total 100G bandwidth, it complies with the 100GBASE-CR4 standard and supports reliable low-latency transmission over a 5-meter distance.
Figure 1 shows the front panel of QSFP28-100G-CU5M.


Table 1 shows the Quick Specs
| Item | Specification |
|---|---|
| Model | QSFP28-100G-CU5M |
| Type | Passive Copper DAC |
| Rate | 100Gbps (4×25G) |
| Length | 5m |
| Connector | QSFP28 to QSFP28 |
| Protocol | 100GBASE-CR4 |
| Parameter | Details |
|---|---|
| Form Factor | QSFP28 |
| Data Rate | 100 Gbps (4 lanes ×25 Gbps) |
| Cable Type | Passive Direct Attach Copper (DAC) |
| Length | 5 Meters |
| Connector | QSFP28 to QSFP28 |
| Standard | 100GBASE-CR4, IEEE 802.3bj |
| Cable Shield | Twinax, Fully Shielded |
| Operating Temp | 0°C ~ 70°C |
| Power Consumption | Low, Passive (No Power Required) |
| Supported Applications | Switch-to-Switch, Switch-to-Server, High-Speed Interconnect |
| Compatibility | For switches, routers, servers with QSFP28 ports |

