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Cisco

Cisco QSFP-400G-VR4 | 400G QSFP112 Transceiver, 400GBASE-VR4, MPO-12, 50m

QSFP-400G-VR4

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Description

The QSFP-400G-VR4 is a hot-swappable 400G QSFP112 transceiver for 400GBASE-VR4 links over parallel multimode fibre. It is built for high-density AI/ML back-end and front-end fabrics, high-performance computing, and cloud data centre leaf and spine networks, and it is mainly used to connect to server NICs over short-reach multimode cabling.

The module carries four 100G PAM4 lanes at 850 nm and terminates on an MPO-12 APC connector. Reach is 50 m on OM4 or OM5 fibre and 30 m on OM3. Maximum power consumption is 9 W, and the module supports breakout into 2 x 200G-VR2 or 4 x 100G-VR1 links. FEC is performed on the host platform. The operating temperature range is 15 to 70 C, with cold start from 0 to 15 C.

It plugs into 400G Cisco QSFP112-compatible ports and interoperates with QDD-400G-VR4 for 400G VR4 and QSFP-100G-SR-S for 100G VR1 breakout over 50 m of multimode fibre.

Enquire with XS Network Tech for new or used pricing and availability.

Features

- Hot-swappable QSFP112 module for 400G parallel multimode links
- Four 100G PAM4 lanes at 850 nm for high-density short-reach connections
- Breakout support for 2 x 200G-VR2 and 4 x 100G-VR1
- Compliant with IEEE 802.3 and the QSFP112 MSA CMIS
- Interoperable with other IEEE-compliant 400G interfaces where applicable
- Tested and qualified on NICs from Cisco and other manufacturers
- Low power consumption of 9 W maximum

Warranty

All products sold by XS Network Tech include a 12-month warranty on both new and used items. Our in-house technical team thoroughly tests used hardware prior to sale to ensure enterprise-grade reliability.

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

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Technical Specifications

FAQs

Technical Specifications

- Form factor: QSFP112
- Standard: 400GBASE-VR4 (IEEE 802.3), 400GAUI-4 electrical interface, QSFP112 MSA, CMIS
- Nominal data rate: 425 Gbps
- Signalling: PAM4, 100 Gbps per lane, 4 lanes
- Nominal wavelength: 850 nm
- Cable type: MMF (OM3, OM4/OM5)
- Reach: 50 m on OM4/OM5, 30 m on OM3
- Modal bandwidth: OM3 2000 MHz-km; OM4 4700 MHz-km; OM5 4700 MHz-km (at 850 nm)
- Optical connector: MPO-12 MMF APC
- Average transmit power per lane: -4.6 dBm min, 4 dBm max
- Average receive power per lane: -6.3 dBm min, 4 dBm max
- Maximum supported insertion loss: 1.9 dB
- Pre-FEC BER: 2.4x10-4
- Breakout: 2 x 200G-VR2 or 4 x 100G-VR1
- Maximum power consumption: 9 W
- Pull tab colour: Purple
- Dimensions with pull tab (H x W x D): 8.5 x 18.4 x 78.3/93.3 mm
- Weight (max): 100 g
- Operating temperature: 15 to 70 C (cold start 0 to 15 C)
- Storage temperature: -40 to 85 C
- Laser class: Class 1

FAQs

Q: What fibre and connector does it use?
A: It uses multimode fibre (OM3, OM4 or OM5) with an MPO-12 APC connector. Reach is 50 m on OM4/OM5 and 30 m on OM3.

Q: Can it be used for breakout links?
A: Yes. It supports breakout into 2 x 200G-VR2 or 4 x 100G-VR1 links.

Q: What does it interoperate with?
A: It interoperates with QDD-400G-VR4 for 400G VR4 and QSFP-100G-SR-S for 100G VR1 breakout over 50 m of multimode fibre.

Q: Which ports and devices does it plug into?
A: It fits 400G Cisco QSFP112-compatible ports and is primarily supported on NICs providing server Ethernet connectivity. Check the Cisco TMG Compatibility Matrix for validated hosts.

Q: How much power does it draw?
A: Maximum power consumption is 9 W, supplied by the host QSFP112 port.

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