• 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-XDR4-S-Arista | 400G QSFP-DD XDR4 Transceiver, SMF, 2km, SN

QDD-400G-XDR4-S-Arista

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Description

The QDD-400G-XDR4-S is a 400G QSFP-DD optical transceiver in the Arista 400G QSFP-DD optics range. It is built for data centre leaf-spine links and 400G-to-4x100G breakout runs of up to 2km over parallel single-mode fibre.

It supports 400GBASE-XDR4, which is 4x 100GBASE-FR, at 1310 nm over G.652 single-mode fibre. This -S variant uses SN optical connectors, which sets it apart from the non-suffixed QDD-400G-XDR4 that uses an MPO-12 APC connector. Transmit power is -2.4 to +4.0 dBm per lane and receive power is -6.4 to +4.5 dBm per lane. Maximum power draw is 12W, supplied from the host QSFP-DD port.

It fits Arista QSFP-DD 400G ports and interoperates optically with 4x 100GBASE-FR links up to 2km. Check Arista's Transceiver and Cable Guide for platform and EOS support.

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

Features

- 400GBASE-XDR4 optic with up to 2km reach over parallel single-mode fibre
- Optical interoperability with 4x 100GBASE-FR (2km) links
- QSFP-DD form factor for high-density 400G ports
- SN optical connector variant of the QDD-400G-XDR4 family, suited to breakout to 100G
- Powered from the host QSFP-DD port with a 12W maximum draw

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-XDR4 (4x 100GBASE-FR)
- Form factor: QSFP-DD
- Wavelength: 1310 nm
- Fibre type: SMF G.652 (parallel single-mode)
- Maximum reach: 2km
- Connector: SN optical connectors
- Tx power: -2.4 to +4.0 dBm per lane
- Rx power: -6.4 to +4.5 dBm per lane
- Interoperability: optical interoperability with 4x 100GBASE-FR up to 2km
- Power consumption: 12W maximum
- Dimensions QSFP-DD Type 1 (H x W x D): 13.5 x 18.4 x 78.3 mm
- Dimensions QSFP-DD Type 2 (H x W x D): 13.5 x 18.4 x 93.3 mm
- Operating case temperature: 0 to 70 C
- Storage temperature: -40 to 70 C
- Relative humidity: 5 to 95%
- Operating altitude: 0 to 10,000 ft

FAQs

Q: How does this differ from the QDD-400G-XDR4?
A: This -S variant uses SN optical connectors. The non-suffixed QDD-400G-XDR4 uses an MPO-12 APC connector.

Q: What can it link to at the far end?
A: It interoperates optically with 4x 100GBASE-FR links up to 2km, which makes it suitable for 400G-to-4x100G breakout.

Q: What fibre does it need?
A: Parallel single-mode fibre (SMF G.652) at 1310 nm, with a reach of up to 2km.

Q: How much power does it draw?
A: Maximum power consumption is 12W, supplied from the host QSFP-DD port.

Q: Which ports does it fit?
A: It fits Arista QSFP-DD 400G ports. Check Arista's Transceiver and Cable Guide for platform and EOS support.

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