Arista Compatible 400G OSFP VSR4 Optical Transceiver

The Arista Compatible 400G OSFP VSR4 Optical Transceiver is a hot-pluggable OSFP (IHS/Finned Top) transceiver rated at 400Gbps. Using a MPO-12/APC optical interface over MMF at 850nm, it covers transmission distances up to 30m@OM3/50m@OM4 or OM5. Compliance with CMIS 5.2, IEEE 802.3bs-400GAUI-8, OSFP MSA, IEEE 802.3 db-400GBASE-VR4, together with integrated diagnostic monitoring, makes it a dependable choice for 400G Ethernet data centers, HPC and machine learning clusters.

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

Specifications

Arista Networks Compatible	OSFP-400G-VSR4
Manufacturer	HT
Form Factor	OSFP (IHS/Finned Top)
Max. Data Rate	400Gbps
Wavelength	850nm
Max. Cable Distance	30m@OM3/50m@OM4 or OM5
Connector	MPO-12/APC
Media	MMF
Transmitter Type	VCSEL
Receiver Type	PIN
TX Power	-4.6~4dBm
Minimum Receiver Power	-6.4dBm
Power Budget	1.8dB
Receiver Overload	4dBm
Max. Power Consumption	9W
Extinction Ratio	2.5dB
DDM/DOM	Supported
Commercial Temperature Range	0 to 70°C (32 to 158°F)
Modulation (Electrical)	8x50G-PAM4
Modulation (Optical)	4x100G-PAM4
CDR (Clock and Data Recovery)	TX & RX Built-in CDR
Inbuilt FEC	No
Bit Error Ratio (BER)	<2.4E-4
MTBF	684931 Hours (@50°C, 60% CL) 273972 Hours (@50°C, 90% CL)
Packaging Technology	COB (Chip on Board) Packaging
Application	400G Ethernet
Protocols	CMIS 5.2, IEEE 802.3bs-400GAUI-8, OSFP MSA, IEEE 802.3 db-400GBASE-VR4

Applications

Network architects choose the Arista Compatible 400G OSFP VSR4 Optical Transceiver for 400G Ethernet data centers, HPC and machine learning clusters: it runs 400Gbps over MMF and reaches 30m@OM3/50m@OM4 or OM5. The MPO-12/APC interface and 850nm optics match the standard cabling plant used in modern data halls, so existing trunks can be reused. It is interoperable with Arista Networks platforms and replaces the Arista Networks part OSFP-400G-VSR4 directly. The link runs 8x50G-PAM4 modulation, which keeps it aligned with current 400G switch silicon.

Standards and Compatibility

On the compatibility side, this unit is the practical equivalent of the Arista Networks part OSFP-400G-VSR4 and works in Arista Networks systems out of the box. Standards compliance covers CMIS 5.2, IEEE 802.3bs-400GAUI-8, OSFP MSA, IEEE 802.3 db-400GBASE-VR4.

Ordering Information

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.

Built to Your Spec

Our product line has grown with the industry for three decades, from GBIC-era modules to today's 800G and 1.6T interconnects. If the exact configuration you need is not listed, we can usually build it: custom lengths, mixed connector breakouts, OEM branding and project-specific firmware coding are all supported.

Logistics

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.

Quality and Testing

Every unit we ship is tested in our own test bed on mainstream switch and transport platforms before packing. Our test center has been fully upgraded, which sets us apart from other third party product providers: 10G, 40G, 100G, 200G and 400G transceivers and direct attach cables are verified on the latest top brand equipment, including selected original switches that can hardly be found elsewhere.

Package

Products are first packed into blister trays or self-sealed bags and then into cartons. Standard labels and marks are applied by default, and customized packing and labeling are available on request.