What type of connection does the Q200-Q200-C create between two network devices?

It provides one straight-through 200Gb/s copper link. A 200G QSFP56 connector is fixed at each end, allowing direct connection between two compatible QSFP56 ports.

How is the 200Gb/s data rate carried through the Q200-Q200-C passive twinax cable?

Across four 50Gb/s PAM4 electrical lanes in each direction. Together, the four lanes deliver the full 200Gb/s port bandwidth between the two QSFP56 endpoints. ([NVIDIA Docs][1])

Can Q200-Q200-C divide one 200G QSFP56 port into multiple lower-speed connections?

No. Q200-Q200-C is a straight-through QSFP56-to-QSFP56 DAC carrying one 200Gb/s link; it does not provide a 2×100G or 4×50G breakout configuration.

Does Q200-Q200-C require separate optical transceivers or a fiber patch cable to establish the link?

No. It is a complete passive direct-attach copper assembly with fixed QSFP56 connectors, so optical modules, optical connectors, and external fiber cabling are not required.

Does Q200-Q200-C use active signal-processing electronics in its high-speed copper path?

No. The high-speed path is passive, reducing power use compared with active optical connections over similar short distances. Each QSFP56 connector includes an EEPROM that allows the host system to read cable information. ([NVIDIA Docs][1])

Can Q200-Q200-C be inserted or removed while compatible QSFP56 equipment remains powered?

Yes. The QSFP56 DAC form factor is hot-pluggable, allowing the cable to be installed or replaced through supported QSFP56 ports without powering down the entire device. ([NVIDIA Docs][1])

200G QSFP56 DAC

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200G QSFP56 to 200G QSFP56 Passive Direct Attach Copper Twinax Cable

Q200-Q200-C

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200G QSFP56 DAC Overview

The 200G QSFP56 DAC category contains one passive direct attach copper twinax cable for short-distance 200Gb/s connections between devices equipped with QSFP56 ports. Q200-Q200-C uses 200G QSFP56 connectors at both ends to provide a direct copper link and is available in lengths from 0.5m to 3m. Designed as an alternative to active optical connections for short-reach transmission, the cable reduces power consumption and electromagnetic interference while supporting 200G interconnections between compatible networking equipment.

FAQ

What type of connection does the Q200-Q200-C create between two network devices?: It provides one straight-through 200Gb/s copper link. A 200G QSFP56 connector is fixed at each end, allowing direct connection between two compatible QSFP56 ports.
How is the 200Gb/s data rate carried through the Q200-Q200-C passive twinax cable?: Across four 50Gb/s PAM4 electrical lanes in each direction. Together, the four lanes deliver the full 200Gb/s port bandwidth between the two QSFP56 endpoints. ([NVIDIA Docs][1])
Which cable lengths are available for Q200-Q200-C in the 200G QSFP56 DAC category?: From 0.5m to 3m. This range is designed for short-distance connections between compatible networking equipment within a rack or between nearby rack positions.
Can Q200-Q200-C divide one 200G QSFP56 port into multiple lower-speed connections?: No. Q200-Q200-C is a straight-through QSFP56-to-QSFP56 DAC carrying one 200Gb/s link; it does not provide a 2×100G or 4×50G breakout configuration.
Does Q200-Q200-C require separate optical transceivers or a fiber patch cable to establish the link?: No. It is a complete passive direct-attach copper assembly with fixed QSFP56 connectors, so optical modules, optical connectors, and external fiber cabling are not required.
Does Q200-Q200-C use active signal-processing electronics in its high-speed copper path?: No. The high-speed path is passive, reducing power use compared with active optical connections over similar short distances. Each QSFP56 connector includes an EEPROM that allows the host system to read cable information. ([NVIDIA Docs][1])
Can Q200-Q200-C be inserted or removed while compatible QSFP56 equipment remains powered?: Yes. The QSFP56 DAC form factor is hot-pluggable, allowing the cable to be installed or replaced through supported QSFP56 ports without powering down the entire device. ([NVIDIA Docs][1])