Choosing 10G, 40G and 100G DAC, AOC and SR-BD links
Match both host ports, connector type and the actual cable route for short links.
Match both host ports, connector type and the actual cable route for short links.
Information to collect
Match both host ports, connector type and the actual cable route for short links.
Provide the current host PID, software version, required interfaces and installation constraints before choosing replacements.
Selection checks
- 10G SFP+, 40G QSFP+ and 100G QSFP28 describe different interface families. Check both ends and the host support list.
- Keep DAC and AOC length suffixes such as 3M, 5M and 7M. Required route length includes service loops and bends.
- QSFP-40G-SR-BD uses a duplex multimode LC link. It is not a single-mode single-fiber module and should not be described as a 100G dual-rate optic.
Before deployment
- Verify exact cable lengths, host identifiers and connector fit.
- Test link mode, error counters and optical diagnostics where available.
- Check strain relief, bend radius and access for replacement.
Preparing a quotation request
Include the exact part numbers, quantities, required condition, included accessories and software entitlements. Identify the target equipment and any unresolved interface or configuration item. A product association is not a validated combination.
Related products
Topic associations; verify the complete configuration before ordering.
- Cisco QSFP-40G-SR-BD 40G Short-Reach Duplex-Fiber BiDi Transceiver
- Cisco QSFP-H40G-CU3M-RF 40G 3m Passive DAC Cable
- Cisco QSFP-H40G-CU5M-RF 40G 5m Passive DAC Cable
- Cisco SFP-H10GB-CU5M-RF 10G 5m Passive DAC Cable
- Cisco SFP-H10GB-CU3M-RF 10G 3m Passive DAC Cable
- Cisco QSFP-H40G-AOC5M-RF 40G 5m Active Optical Cable
- Cisco QSFP-H40G-AOC7M-RF 40G 7m Active Optical Cable
- Cisco QSFP-100G-CU3M-RF 100G 3m Passive DAC Cable
- Cisco QSFP-H40G-AOC1M-RF 40G 1m Active Optical Cable
- Cisco QSFP-H40G-AOC2M-RF 40G 2m Active Optical Cable
- Cisco QSFP-H40G-AOC3M-RF 40G 3m Active Optical Cable