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

Arista CAB-O-8S-400G-2M | 400G OSFP to 8x 50G SFP56 DAC Cable, 2m

CAB-O-8S-400G-2M

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Description

This passive twinax copper breakout cable splits one 400G OSFP port into eight 50G SFP56 connections over a 2 metre reach. It carries 8x 50G PAM-4 electrical lanes for 400 Gbps aggregate and suits short server-to-switch and leaf-spine links in Arista environments. The passive design keeps power consumption and latency very low, and the 2m length is suited to in-rack and adjacent-rack runs.

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

Features

- Passive design with no active components, giving very low power consumption and latency
- Fans one 400G OSFP port out to eight independent 50G SFP ports
- Detected and enabled automatically when inserted into Arista switches
- Suited to connecting Arista switches to non-Arista equipment such as server ports
- Also available in 1 m and 3 m lengths

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

- 400GBASE-CR8 OSFP to 8 x 50GBASE-CR SFP56 breakout
- Passive twinax copper construction
- Cable length: 2 metres
- 8 x 50G PAM-4 electrical lanes, 400 Gbps aggregate
- Requires an OSFP port on the 400G end (OSFP cannot be used in QSFP-DD ports)
- Minimum Arista EOS version: 4.23.0
- Compliant with IEEE 802.3cd 50GBASE-CR
- Each connector has an EEPROM indicating 50G PAM-4 support

FAQs

Q: What port does the 400G end of this cable require?
A: The 400G end is an OSFP connector, so it needs an OSFP port. It cannot be used in QSFP-DD ports.

Q: How many connections does this cable provide?
A: It breaks one 400G OSFP port out into eight 50G SFP56 connections, using 8x 50G PAM-4 electrical lanes.

Q: Is this an active or passive cable?
A: It is a passive twinax copper cable with no active components, which keeps power consumption and latency very low.

Q: What Arista EOS version is required?
A: The minimum Arista EOS version is 4.23.0.

Q: Can it connect to non-Arista equipment such as servers?
A: Yes. The SFP56 ends are suited to connecting Arista switches to non-Arista equipment such as server ports that support 50GBASE-CR.

Datasheet

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