Arista CAB-Q-S-0-5M-Arista | 40G QSFP+ to 4x 10G SFP+ Breakout DAC Cable, 0.5m

Q: What is the typical use case for the CAB-Q-S-0-5M breakout cable?
A: This cable is ideal for connecting a 40G QSFP+ switch port to four separate 10G SFP+ devices, commonly used in top-of-rack switching scenarios, adjacent rack connections, and cost-effective 40G to 10G breakout applications within data centers.

Q: Is this cable compatible with non-Arista network equipment?
A: Yes, the CAB-Q-S-0-5M follows MSA standards and is designed to be compatible with any switch or device that supports standard QSFP+ and SFP+ interfaces, including equipment from Cisco, Juniper, Dell, and other major vendors.

Q: What is the maximum distance supported by this passive DAC cable?
A: As a passive copper cable, the CAB-Q-S-0-5M is designed for short-reach connections of 0.5 meters. For longer distances, active optical cables or fiber optic transceivers would be required.

Q: Does this cable require external power to operate?
A: No, this is a passive copper cable that draws minimal power (maximum 0.5W) directly from the connected ports. No external power supply is required, making it a low-power and cost-effective interconnect solution.

Q: Can this cable support different data rates besides 40G/10G?
A: Yes, the cable chipset supports data rates ranging from 10.31Gbps to 41.25Gbps, allowing flexibility for various Ethernet and InfiniBand applications depending on the connected port configuration.