• Silver-colored arista qdd-400g-plr4 sfp+ transceiver modules with blue handles and metallic connectors for 400g qsfp-dd use
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Arista

Arista QDD-400G-PLR4 | 400G QSFP-DD PLR4 Transceiver, SMF, 10km, MPO-12 APC

QDD-400G-PLR4

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Description

This 400GBASE-PLR4 QSFP-DD transceiver is designed for 400G data centre links over parallel single-mode fibre, reaching up to 10km. It suits leaf and spine uplinks, inter-building connections, and 400G-to-4x100G breakout between QSFP-DD and 100G QSFP ports.

It carries four 100G PAM4 optical lanes at 1310nm over G.652 single-mode fibre and terminates in an MPO-12 APC connector. A gearbox converts the 8x 50G PAM4 electrical lanes to 4x 100G PAM4 optical lanes. Transmit power is -1.4 to +4.0 dBm per lane, receive power is -7.7 to +4.5 dBm per lane, and maximum module power is 12W. The MPO-12 APC connector distinguishes this part from the QDD-400G-PLR4-S variant, which uses SN connectors.

It is intended for Arista switches with QSFP-DD ports running EOS 4.25.2 or later. Breakout links connect to QSFP-100G-LR optics, and it interoperates with other 400G PLR4 modules including the OSFP-400G-PLR4.

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

Features

- Breaks out to 4 x 100G and interoperates with QSFP-100G-LR modules over up to 10km of single-mode fibre
- Interoperates with other 400G PLR4 modules, including the OSFP-400G-PLR4
- Gearbox converts 8x 50G PAM4 electrical lanes to 4x 100G PAM4 optical lanes
- Standard MPO-12 APC connector for four single-mode fibre pairs
- A separate -S variant (QDD-400G-PLR4-S) is available with SN connectors

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

- Part number: QDD-400G-PLR4
- PHY type: 400GBASE-PLR4
- Form factor: QSFP-DD
- Connector type: MPO-12 APC
- Wavelength: 1310 nm
- Cable type: SMF G.652
- Optical lanes: 4 x 100G PAM-4 (parallel fibre pairs)
- Maximum reach: 10 km
- Tx power: -1.4 to +4.0 dBm per lane
- Rx power: -7.7 to +4.5 dBm per lane
- Maximum module power consumption: 12 W
- Minimum EOS version: 4.25.2
- Breakout: 4 x 100GBASE-LR QSFP (QSFP-100G-LR) up to 10 km

FAQs

Q: Can this module break out to 100G links?
A: Yes. It can break out to four 100GBASE-LR links and interoperates with QSFP-100G-LR modules over up to 10km of single-mode fibre.

Q: What fibre and connector does it use?
A: It uses parallel G.652 single-mode fibre with an MPO-12 APC connector. The QDD-400G-PLR4-S variant uses SN connectors instead.

Q: Which switches does it work with?
A: It is for Arista switches with QSFP-DD ports running EOS 4.25.2 or later. Refer to Arista's Transceiver Guide for platform support.

Q: How much power does the module draw?
A: Maximum module power consumption is 12W, which is the Arista class figure for 400G PLR4, DR4, XDR4, FR4 and LR4 optics.

Q: Does it interoperate with OSFP optics?
A: Yes. It interoperates with other 400G PLR4 modules, including the OSFP-400G-PLR4.

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