
The Arista Compatible 400G OSFP LR4 Optical Transceiver is a OSFP (IHS/Finned Top) optical transceiver delivering 400Gbps over SMF. Operating at 1271nm, 1291nm, 1311nm, and 1331nm with a Duplex LC/UPC interface, it reaches 10km and is compliant with OSFP MSA, IEEE 802.3 bs-400GAUI-8, IEEE 802.3 cu, and CMIS4.0. Built-in digital diagnostics give real-time access to operating parameters, making the module easy to deploy and maintain in 400G Ethernet data centers, HPC and machine learning clusters.
| Arista Networks Compatible | OSFP-400G-LR4 |
|---|---|
| Manufacturer | HT |
| Form Factor | OSFP (IHS/Finned Top) |
| Max. Data Rate | 400Gbps |
| Wavelength | 1271nm, 1291nm, 1311nm, and 1331nm |
| Max. Cable Distance | 10km |
| Connector | Duplex LC/UPC |
| Media | SMF |
| Transmitter Type | CWDM EML |
| Receiver Type | PIN |
| TX Power | -1.9~4.8dBm |
| Minimum Receiver Power | -9.1dBm |
| Power Budget | 7.2dB |
| Receiver Overload | 5.6dBm |
| Max. Power Consumption | 10W |
| Extinction Ratio | 3.5dB |
| 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 DSP |
| Inbuilt FEC | No |
| Bit Error Ratio (BER) | <1E-12 |
| MTBF | 6955554.01 Hours |
| Packaging Technology | COB (Chip on Board) Packaging |
| Application | 400G Ethernet |
| Protocols | OSFP MSA, IEEE 802.3 bs-400GAUI-8, IEEE 802.3 cu, and CMIS4.0 |
Built for 400G Ethernet data centers, HPC and machine learning clusters, this OSFP (IHS/Finned Top) module carries 400Gbps over SMF up to 10km per link. With its Duplex LC/UPC optical interface, the module works directly with the SMF infrastructure already installed in most facilities. It is interoperable with Arista Networks platforms and replaces the Arista Networks part OSFP-400G-LR4 directly.
On the compatibility side, this unit is the practical equivalent of the Arista Networks part OSFP-400G-LR4 and works in Arista Networks systems out of the box. Standards compliance covers OSFP MSA, IEEE 802.3 bs-400GAUI-8, IEEE 802.3 cu, and CMIS4.0.
Order this product as OSFP-LR4-400G. Common models are stocked for fast dispatch. We can supply the module with neutral or customer-branded labels, and compatibility coding for a specific equipment vendor can be added at no extra process step.
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.
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.
As a manufacturer serving the fiber optic industry since 1995, we have strong in-house manufacturing and design capability. From early GBIC, Xenpak and X2 modules to today's SFP, SFP+, QSFP, QSFP-DD and OSFP products, we grow together with the industry. OEM and custom-designed transceivers and cables are welcome, and our factory-direct pricing is very competitive compared with online retail stores.
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.