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Arista OSFP-400G-SRBD 400GBASE-BIDI OSFP 855 / 908nm
400 Gbps 400GBASE-BIDI (SR4.2) OSFP transceiver, 855 / 908 nm (BiDi), up to 70 m OM3 / 100 m OM4, 0 to 70 °C case temperature.
- Manufacturer
- Arista Networks, Inc.
- Mfr part number
- OSFP-400G-SRBD
- Series
- 400G OSFP
- Category
- Fiber optic transceiver modules
- Datasheet
- OSFP-400G-SRBD datasheet (PDF)
OSFP-400G-SRBD specifications
| Attribute | Value |
|---|---|
| Part Number | OSFP-400G-SRBD |
| Manufacturer | Arista Networks, Inc. |
| Brand | Arista Networks |
| Standard | 400GBASE-BIDI (SR4.2) |
| Form Factor | OSFP, hot-swappable |
| Data Rate | 400 Gbps |
| Wavelength | 855 / 908 nm (BiDi) |
| Media | Parallel multimode (OM3/OM4) |
| Max Distance | 70 m OM3 / 100 m OM4 |
| Connector | MPO-12 UPC |
| Tx Power | −6 to +4 dBm/lane |
| Rx Power | −7.9 to +4 dBm/lane |
| Breakout | 4 × 100G-SRBD or 4 × 100G-SR1.2 |
| Max Power | 12 W |
| Case Temp | 0 °C to 70 °C |
| Dimensions | 13.0 × 22.6 × 100.4 mm |
| Compliance | IEEE 802.3, OSFP MSA |
| Reach detail | 70 m on OM3 and 100 m on OM4 parallel multimode fiber |
All values are from Arista Networks' published Optics Modules and Cables data sheet (Sep 2026). Confirm platform support for your switch with us before ordering.
About the Arista OSFP-400G-SRBD
The Arista OSFP-400G-SRBD is a hot-swappable OSFP 400GBASE-BIDI (SR4.2) optical transceiver for 400 Gbps Ethernet over parallel multimode (OM3/OM4), with a MPO-12 UPC interface and reach of up to 70 m OM3 / 100 m OM4. Arista lets you switch it in software between a 400G point-to-point link and 4 × 100G breakout to either 100G-BIDI or 100G-SR1.2 optics. It also supports breakout to 4 × 100G-SRBD or 4 × 100G-SR1.2. Typical uses: 400G spine and super-spine fabrics, AI/ML clusters, 4 × 100G breakout and data-centre interconnect.
- 400 Gbps 400GBASE-BIDI up to 70 m OM3 / 100 m OM4
- Software-selectable: 400G, 4 × 100G-BIDI or 4 × SR1.2
- Reuses 40G/100G MPO-12 cabling
- MPO-12 UPC connector · Parallel multimode (OM3/OM4)
- Genuine Arista optic · GST invoice · pan-India dispatch
OSFP-400G-SRBD: frequently asked questions
What is the Arista OSFP-400G-SRBD?
The Arista OSFP-400G-SRBD is a OSFP 400GBASE-BIDI (SR4.2) module from Arista Networks for 400 Gbps links. It plugs into a OSFP port on an Arista switch and is used for 400G spine and super-spine fabrics, AI/ML clusters, 4 × 100G breakout and data-centre interconnect.
What is the maximum distance of the OSFP-400G-SRBD?
Arista specifies the OSFP-400G-SRBD for 70 m on OM3 and 100 m on OM4 parallel multimode fiber.
What are the transmit and receive power levels of the OSFP-400G-SRBD?
Per Arista's published optics data sheet, the OSFP-400G-SRBD transmits −6 to +4 dBm/lane and receives −7.9 to +4 dBm/lane.
Which fiber and connector does the OSFP-400G-SRBD need?
The OSFP-400G-SRBD uses a MPO-12 UPC connector on parallel multimode (OM3/OM4), at 855 / 908 nm (BiDi). BiDi optics must be installed as a matching pair.
Is the OSFP-400G-SRBD compatible with my Arista switch?
It works in Arista switches with OSFP ports that support this optic. Send us your switch model and EOS version and we will check it against Arista's Transceiver and Cable Guide before dispatch, so you only receive a module that works in your port.
OSFP vs QSFP-DD: which 400G version do I need?
It depends only on your switch port. OSFP ports need OSFP optics and QSFP-DD ports need QSFP-DD optics; they are not mechanically interchangeable. If both ends run the same optical standard (e.g. DR4 to DR4), an OSFP module and a QSFP-DD module interoperate over the fibre.
Does the OSFP-400G-SRBD support breakout?
Yes. Arista lists breakout to 4 × 100G-SRBD or 4 × 100G-SR1.2. Use the matching optics at the far end and a suitable breakout cable or patch panel.
Is your OSFP-400G-SRBD genuine Arista?
Yes. Next Gen Networks supplies original Arista Networks optics, not third-party lookalikes or grey-market stock. Every unit is checked before dispatch, and we share the serial numbers on request so you can verify them in EOS ('show inventory').
What is the OSFP-400G-SRBD price in India and how do I order?
The Arista OSFP-400G-SRBD price in India depends on quantity, delivery city and current stock. Next Gen Networks supplies it with a GST invoice (input tax credit ready) and pan-India dispatch from New Delhi. Send the part number, quantity and delivery city on WhatsApp +91-7827955775 or email Sales@nextgennetworks.in and we reply with a GST quote.
How much power does the OSFP-400G-SRBD draw?
Arista lists maximum power of 12 W for the OSFP-400G-SRBD. Check your switch's per-port power budget for dense deployments.
Documents
NextGen datasheetPDF · specs, FAQ & buying guideManufacturer datasheet
Arista family datasheet
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OSFP-400G-VSR4400GBASE-VSR4, 30 m OM3 / 50 m OM4OSFP-400G-SR8400GBASE-SR8, 70 m OM3 / 100 m OM4OSFP-400G-SR8-C400GBASE-SR8 + 8 × 50G / 25G-SR, 70 m OM3 / 100 m OM4OSFP-400G-DR4400GBASE-DR4, 500 m SMFOSFP-400G-XDR4400GBASE-XDR4, 2 km SMFOSFP-400G-XDR4-S400GBASE-XDR4, 2 km SMFGovernment, PSU and enterprise orders welcome. GST invoice and pan-India delivery.
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