• Silver-colored arista H-D400-4Q100-1M sfp+ transceiver modules with blue handles and metallic connectors for 400g active DAC
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Arista

Arista OSFP-400G-SR8-C-Arista | 400G OSFP SR8-C Transceiver, MPO-16, 100m OM4

OSFP-400G-SR8-C-Arista

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Description

The Arista 400GBASE-SR8 OSFP transceiver in its SR8-C variant is a multimodule optic for high-density 400G data centre leaf, spine and server-access links over short-reach multimode fibre. It uses eight parallel 850nm lanes and an MPO-16 APC connector.

The module runs 400GBASE-SR8 over eight 50G PAM4 lanes and, as a -C variant, can also operate as channelised 8x 50G-SR or 25G-SR links for breakout deployments. Reach is 70m over OM3 and 100m over OM4 parallel multimode fibre. Per-lane transmit power is -6.5 to +4.0 dBm and receive power is -8.4 to +4.0 dBm. The OSFP package measures 13.0 x 22.6 x 100.4 mm and operates at a case temperature of 0 to 70 C.

It is supported on Arista platforms with OSFP ports running EOS 4.28.1 or later, and links with other 400GBASE-SR8 optics such as QDD-400G-SR8 and QDD-400G-SR8-C over MPO-16 APC parallel OM3 or OM4 fibre.

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

Features

- Supports both 400GBASE-SR8 and channelised 8x 50G-SR / 25G-SR operation
- Parallel multimode fibre with MPO-16 APC connector
- Up to 100m over OM4 parallel multimode fibre
- Hot-pluggable OSFP form factor
- Suited to 400G leaf, spine and server-access links in dense data centres
- Breakout capability for 50G and 25G server-facing ports

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

Technical Specifications

- Form factor: OSFP
- PHY type: 400GBASE-SR8 and SR8-C
- Lanes: 8 x 50G PAM4
- Channelised mode: 8x 50G-SR / 25G-SR (-C variant)
- Wavelength: 850 nm
- Connector: MPO-16 APC
- Fibre type: Multimode, parallel MMF, 50.0 um (OM3 and OM4)
- Max reach: 70m (OM3), 100m (OM4)
- Modal bandwidth: 2000 MHzkm (OM3), 4700 MHzkm (OM4)
- Tx power: -6.5 to +4.0 dBm per lane
- Rx power: -8.4 to +4.0 dBm per lane
- Pull type: Pull tab
- Dimensions (H x W x D): 13.0 x 22.6 x 100.4 mm
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0-10,000 ft
- Minimum EOS version: 4.28.1

FAQs

Q: Does this transceiver need a licence or subscription?
A: No licence is required for the optic itself. It needs a compatible OSFP port on a host running EOS 4.28.1 or later.

Q: What fibre and connector does it use?
A: It uses parallel multimode fibre with an MPO-16 APC connector, reaching 70m on OM3 and 100m on OM4.

Q: What does the -C in SR8-C mean?
A: The -C variant can run as 400GBASE-SR8 or as eight channelised 50G-SR / 25G-SR links, whereas the standard OSFP-400G-SR8 supports 400G operation only.

Q: Which optics can it link with?
A: It links with 400GBASE-SR8 optics such as QDD-400G-SR8 and QDD-400G-SR8-C over MPO-16 APC parallel OM3 or OM4 fibre.

Q: Which EOS version is required?
A: This module requires EOS 4.28.1 or later on the host switch. Check the Arista Transceiver Guide for per-platform port support.

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