Arista H-O400-4Q100-5M-Arista | 400G OSFP to 4x 100G QSFP28 Breakout Cable, 5m

Q: What is the primary use case for the H-O400-4Q100-5M cable?
A: This breakout cable is designed for data centres that need to connect a single 400G OSFP switch port to four separate 100G QSFP28 devices, such as servers or switches, enabling efficient bandwidth distribution and utilising existing 100G infrastructure within the same rack or adjacent racks.

Q: Is this cable compatible with QSFP-DD ports?
A: No, the H-O400-4Q100-5M is specifically designed for OSFP form factor ports. For QSFP-DD to 4x 100G QSFP28 breakout, Arista offers the H-D400-4Q100-5M variant. Always verify your switch port type before ordering.

Q: What is the difference between active and passive copper cables?
A: Active copper cables like the H-O400-4Q100-5M include integrated signal amplification and equalization circuits, enabling longer cable runs (up to 5-7 meters) with better signal integrity compared to passive DAC cables, which are typically limited to 1-3 meters.

Q: Can I use this cable to connect Arista switches to other vendors' equipment?
A: While this cable is designed for Arista Networks equipment and follows industry standards (400GBASE-CR8 and 100GBASE-CR4), compatibility with third-party equipment depends on the vendor's support for these standards and cable coding. Testing is recommended for multi-vendor deployments.

Q: What warranty does Arista provide for this cable?
A: Arista optical cables and transceivers typically include a one-year limited hardware warranty covering parts, repair, or replacement. Extended support services including advance hardware replacement options are available separately.