• Arista ADPT-O-Q-100G OSFP-to-QSFP28 100G adapter with silver SFP+ modules
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Arista

Arista CAB-Q-2Q-100G-1M | 100G QSFP28 to 2x 50G QSFP28 Breakout DAC, 1m

CAB-Q-2Q-100G-1M

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Description

This passive twinax copper breakout direct attach cable connects one 100G QSFP28 port to two 50G QSFP28 ports over a 1 m run. It supports 100GBASE-CR4 on the single-port end and 50GBASE-CR2 on the dual-port end, making it a cost-effective option for short links within a rack or between adjacent racks. This 1m length is the shortest in the CAB-Q-2Q-100G family, which also includes 2m and 3m variants.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Breaks out a single 100G QSFP28 port into two 50G QSFP28 links
- Passive twinax copper construction for short-reach, cost-effective links
- Suited to top-of-rack and adjacent-rack connections
- Part of the Arista 100GBASE-CR4 / 50GBASE-CR2 copper cable portfolio

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Datasheet

Technical Specifications

- Part number: CAB-Q-2Q-100G-1M
- Type: passive twinax copper breakout direct attach cable
- Single end: 100GBASE-CR4 QSFP28
- Dual end: 2 x 50GBASE-CR2 QSFP28
- Cable length: 1 m

FAQs

Q: What does this cable connect?
A: It connects one 100G QSFP28 port to two 50G QSFP28 ports, splitting the 100G link into two 50G links over a 1 m passive copper cable.

Q: Is this an active or passive cable?
A: It is a passive twinax copper cable, so it contains no active optical or signal-conditioning electronics in the cable ends.

Q: What other lengths are available in this family?
A: The CAB-Q-2Q-100G family is also offered as CAB-Q-2Q-100G-2M (2 m) and CAB-Q-2Q-100G-3M (3 m). This SKU is the 1 m version.

Q: Where is this cable typically used?
A: It suits short-reach links within a rack or between adjacent racks where a 100G switch port needs to feed two 50G ports.

Q: Do I need to consider FEC settings with copper breakout cables?
A: Yes. Copper cables at these speeds can have forward error correction requirements, so check the FEC settings on both connected ports for your platform before deployment.

Datasheet

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