• Silver-colored Arista OSFP-400G-VSR4 400G OSFP transceiver modules with blue handles and metallic connectors
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Arista

Arista OSFP-400G-VSR4 | 400G OSFP Transceiver, VSR4, MPO-12 APC, 50m OM4

Arista OSFP-400G-VSR4 | 400G OSFP Transceiver, VSR4, MPO-12 APC, 50m OM4

OSFP-400G-VSR4

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Description

The Arista OSFP-400G-VSR4 is a 400GBASE-VSR4 OSFP transceiver designed for high-density, short-reach 400 Gigabit Ethernet connections in data centre environments. Utilising an MPO-12 APC connector and parallel OM4 multimode fibre, it delivers 400G throughput over distances of up to 50 metres — ideal for top-of-rack to end-of-row switching, spine-leaf interconnects, and high-performance computing fabric deployments. The OSFP form factor supports the latest generation of Arista 400G-capable switches and line cards.

This transceiver operates across four parallel 100G lanes (4x100G NRZ) to achieve aggregate 400G performance, making it compatible with Arista 7800, 7500, and 7300 series platforms equipped with OSFP ports. The MPO-12 APC interface ensures low-loss, high-reliability fibre connectivity in structured cabling environments. Available now at iptrading.com.au — competitive prices and local support.

Features

- 400G aggregate throughput via 4x 100G NRZ parallel lane architecture
- OSFP form factor supports next-generation 400G Arista switch platforms
- MPO-12 APC connector for low-loss, high-reliability multimode fibre connectivity
- Up to 50m reach over OM4 parallel MMF — ideal for data centre short-reach interconnects
- Supports breakout configurations for 4x 100G deployments with appropriate cabling
- Hot-swappable design minimises downtime during installation and maintenance
- VCSEL-based 850nm optics for cost-effective, high-density 400G deployments
- Suited for spine-leaf, top-of-rack, and HPC fabric interconnect scenarios

Warranty

Arista hardware products come with a 1-year limited hardware warranty, covering defects in materials and workmanship under normal use.
Extended Warranty Options:
IP Trading offers tailored extended warranty solutions and support packages for Arista products. Contact our team to explore options that align with your organisation's needs.
https://www.arista.com/assets/data/pdf/Warranty.pdf

All technical data should be verified on the manufacturer data sheets.

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Technical Specifications

FAQs

Technical Specifications

- Form factor: OSFP (Octal Small Form-factor Pluggable)
- Data rate: 400 Gbps (400GBASE-VSR4)
- Lane configuration: 4x 100G NRZ parallel lanes
- Connector type: MPO-12 APC
- Fibre type: Parallel OM4 multimode fibre (MMF)
- Maximum reach: Up to 50 metres over OM4 MMF
- Wavelength: 850 nm (VCSEL-based)
- Compliance: IEEE 802.3bs 400GBASE-SR4.2 / VSR4
- Compatible platforms: Arista 400G OSFP-capable switches and line cards

FAQs

Q: What fibre type and cable infrastructure does the OSFP-400G-VSR4 require?
A: This transceiver requires parallel OM4 multimode fibre with an MPO-12 APC connector. It supports distances of up to 50 metres, making it suited for within-rack and between-rack connections in data centre structured cabling environments.

Q: Which Arista switch platforms are compatible with this transceiver?
A: The OSFP-400G-VSR4 is designed for use with Arista switches and line cards featuring OSFP port interfaces, including platforms in the Arista 7800, 7500, and 7300 series that support 400G OSFP optics. Always confirm compatibility with your specific chassis and line card model.

Q: What is the difference between VSR4 and SR4 in 400G transceivers?
A: VSR4 (Very Short Reach 4-lane) is optimised for data centre interconnects up to 50m over OM4 fibre. SR4 typically targets slightly longer reaches. VSR4 uses four parallel 100G NRZ lanes over OM4 MMF via MPO-12, providing a cost-effective solution for high-density short-reach 400G deployments.

Q: Can I use the OSFP-400G-VSR4 with a breakout cable for 4x 100G connections?
A: Yes, with an appropriate MPO-12 to 4x LC or 4x MPO breakout cable, this transceiver can be used in breakout configurations to connect to four separate 100G ports, enabling flexible high-density cabling in spine-leaf or disaggregated network architectures.

Q: Can I purchase this transceiver in Australia through IP Trading?
A: Yes. The Arista OSFP-400G-VSR4 is available now through iptrading.com.au with competitive pricing and local Australian support. Contact our team for volume pricing, compatibility advice, or assistance with your data centre deployment.

Q: Is this transceiver hot-swappable?
A: Yes, OSFP transceivers are hot-swappable, allowing insertion and removal from compatible switch ports without powering down the system — minimising downtime during maintenance or infrastructure upgrades.

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