• 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-LR8-Arista | 400G QSFP-DD Transceiver, 400GBASE-LR8, SMF, 10km

QDD-400G-LR8-Arista

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Description

The Arista QDD-400G-LR8 is a 400GBASE-LR8 optical transceiver in the QSFP-DD form factor. It carries 8 x 50G PAM4 lanes in the 1310nm window over duplex single-mode fibre with LC connectors, reaching up to 10km. It suits 400G data centre and campus links where longer single-mode runs are needed.

The module uses eight wavelengths between 1274 and 1309 nm over standard SMF G.652 fibre. Transmit power is -2.8 to +5.3 dBm per lane and receive power is -9.1 to +5.3 dBm per lane. Maximum power consumption is 14W, drawn from the host switch port. It is specified for an operating case temperature of 0 to 70 C.

It is intended for QSFP-DD ports on Arista platforms. The equivalent module for OSFP ports is OSFP-400G-LR8.

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

Features

- Duplex single-mode 400G optic for links up to 10km
- Eight-wavelength 400GBASE-LR8 design on a standard duplex LC interface
- QSFP-DD form factor for 400G QSFP-DD switch ports
- Uses standard SMF G.652 fibre
- Maximum power consumption of 14W
- OSFP equivalent available as OSFP-400G-LR8

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-LR8
- Form factor: QSFP-DD
- Lanes: 8 x 50G PAM4
- Connector type: Duplex LC
- Cable type: Single-mode fibre (SMF G.652)
- Maximum reach: 10km
- Wavelengths (nm): 1274, 1278, 1282, 1287, 1296, 1300, 1305, 1309
- Tx power: -2.8 to +5.3 dBm per lane
- Rx power: -9.1 to +5.3 dBm per lane
- Maximum power consumption: 14W
- 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: What fibre does it need?
A: It runs over duplex single-mode fibre (SMF G.652) with LC connectors, up to 10km.

Q: Which ports does it fit?
A: It fits QSFP-DD ports on Arista platforms. For OSFP ports, the equivalent module is OSFP-400G-LR8.

Q: How much power does it draw?
A: Maximum power consumption is 14W, drawn from the host switch port.

Q: What is the operating temperature range?
A: The operating case temperature is 0 to 70 C, and storage temperature is -40 to 70 C.

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