Arista Compatible 400G OSFP VSR4 Optical Transceiver

Designed for 400G Ethernet data centers, HPC and machine learning clusters, the Arista Compatible 400G OSFP VSR4 Optical Transceiver provides 400Gbps throughput in a OSFP (IHS/Finned Top) form factor. It operates at 850nm over MMF through a MPO-12/APC connector and supports link lengths up to 30m@OM3/50m@OM4 or OM5. The module meets CMIS 5.2, IEEE 802.3bs-400GAUI-8, OSFP MSA, IEEE 802.3 db-400GBASE-VR4 and includes digital diagnostic monitoring for live status readout.

Product Highlights

• OSFP (IHS/Finned Top) form factor, 400Gbps data rate
• Wavelength: 850nm
• Connector: MPO-12/APC
• Reach: up to 30m@OM3/50m@OM4 or OM5
• Fiber media: MMF
• DDM/DOM: Supported

In 400G Ethernet data centers, HPC and machine learning clusters, the Arista Compatible 400G OSFP VSR4 Optical Transceiver delivers 400Gbps transmission over MMF with a reach of 30m@OM3/50m@OM4 or OM5. Digital diagnostics report transmit power, receive power and temperature in real time, which simplifies commissioning and ongoing maintenance. For networks standardized on Arista Networks hardware, it is a drop-in equivalent of the OSFP-400G-VSR4. The link runs 8x50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Compliance: CMIS 5.2, IEEE 802.3bs-400GAUI-8, OSFP MSA, IEEE 802.3 db-400GBASE-VR4. For projects standardized on Arista Networks hardware, this product replaces the OSFP-400G-VSR4 directly, with identical fit and function. Every unit's EEPROM coding and link behavior are verified on real host equipment in our lab, so what arrives at your site is ready to use.

To order, quote OSFP-VSR4-400G together with your quantity. Stock items ship quickly; for OEM orders we support custom labels, retail packing and vendor-specific coding, all handled in our own factory.

Each unit is sealed in an anti-static bag, cushioned in a blister tray and boxed in an export-grade carton. Outer cartons carry handling marks and can be palletized for air or sea freight. If your project requires retail boxes, barcodes or your own brand on the label, we can arrange that as well.

We have manufactured fiber optic connectivity products since 1995 and run our own production lines in Shenzhen. Beyond the standard catalog we build to order: special cable lengths, custom connector combinations, vendor-specific compatibility coding and private labeling. Send us your requirement and our engineers will quote a practical solution.

Our warehouse keeps fast-moving transceivers and cables ready for same-week dispatch. Courier, air freight and sea freight options are all available depending on your budget and schedule, and we consolidate multiple items into one shipment whenever it saves you cost.

Before any product leaves our factory it goes through optical performance testing, compatibility verification on real switch platforms and a final visual inspection. Our in-house test lab holds a wide range of current and legacy switches from major brands, so interoperability is proven on the actual equipment your network uses rather than assumed from paper specifications.