• 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 QDD-400G-SR8-C-Arista | 400G QSFP-DD SR8 Transceiver, Channelized, MPO-16, 100m

QDD-400G-SR8-C-Arista

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Description

The QDD-400G-SR8-C is a 400G QSFP-DD multi-mode optical transceiver for short-reach data centre links. It suits high-density switch-to-switch connectivity and 400G-to-8x50G/25G breakout deployments over parallel multi-mode fibre.

It runs 400GBASE-SR8 at 850 nm and connects through an MPO-16 APC interface. Reach is up to 100m over OM4 fibre and 70m over OM3. The -C suffix denotes the channelized variant, which supports 8x 50G-SR and 25G-SR breakout in addition to native 400GBASE-SR8. Maximum power consumption is 12 W, drawn from the host switch port.

The module is intended for Arista switches with 400G QSFP-DD ports. The non-channelized QDD-400G-SR8 is the sibling SKU, so choose the -C part when breakout operation is required.

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

Features

- Hot swappable to maximise uptime and simplify serviceability
- Supports both native 400GBASE-SR8 and channelized 8x 50G-SR / 25G-SR operation
- Up to 100m over parallel OM4 multi-mode fibre, 70m over OM3
- Flexibility of media and interface choice on a port-by-port basis
- Part of Arista's range of 400GE optics, AOCs and cables in OSFP and QSFP-DD form factors

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

- PHY type: 400GBASE-SR8 and SR8-C
- Form factor: QSFP-DD
- Connector: MPO-16 APC
- Wavelength: 850 nm
- Fibre type: Multi-mode, 50.0 um core
- Reach over OM3: 70m
- Reach over OM4: 100m
- OM3 modal bandwidth: 2000 MHzkm
- OM4 modal bandwidth: 4700 MHzkm
- Tx power: -6.5 to +4.0 dBm per lane
- Rx power: -8.4 to +4.0 dBm per lane
- Maximum power consumption: 12 W
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Breakout support: 8x 50G-SR / 25G-SR (channelized)

FAQs

Q: What is the difference between QDD-400G-SR8-C and QDD-400G-SR8?
A: The -C variant is channelized, so it supports breakout to 8x 50G-SR / 25G-SR as well as native 400GBASE-SR8. The non-channelized QDD-400G-SR8 is the sibling SKU.

Q: What fibre and reach does it support?
A: It uses 50.0 um multi-mode fibre with an MPO-16 APC connector. Reach is up to 100m over OM4 and 70m over OM3.

Q: Which switches is it designed for?
A: It is designed for Arista switches with 400G QSFP-DD ports. Check the Arista Transceiver Compatibility Matrix for platform and EOS support.

Q: How much power does the module draw?
A: Maximum power consumption is 12 W per module, supplied by the host switch port.

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