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Compact QSFP+ transceiver module with MPO port, matte metal finish

Solarflare Communications, Inc.

Solarflare Communications, Inc. SOLR-SFM40G-SR4 40GBASE-SR4 850nm QSFP+ Transceiver server accessory

SKU CH-VGGW-CJ20S MPN SOLR-SFM40G-SR4

A hot-pluggable QSFP+ transceiver delivers 40 GbE over multi-mode fiber up to 100 meters using an MPO connector at 850 nm

  • Product typeQSFP+
  • Key features1 x MPO 40GBase-SR4 Network
  • 40 Gb/s throughput for high-density server links
  • 100 m reach over OM3 multi-mode fibre
  • Hot-pluggable QSFP+ design enables live module swaps
  • MPO connector simplifies multi-lane cabling
  • Compliant with IEEE 802.3ba and SFF-8436 standards

40GBASE-SR4 QSFP+ Transceiver

The Solarflare SOLR-SFM40G-SR4 is a 40GBASE-SR4 optical transceiver built for 40-Gigabit Ethernet links over multi-mode fiber. It uses an 850 nm wavelength and a standard MPO connector. The module follows the QSFP+ form factor and is designed for Solarflare 40GbE server adapters.

Sustained Load Behaviour

The transceiver is a hot-pluggable QSFP+ device compliant with the QSFP+ MSA SFF-8436 and IEEE 802.3ba specifications. It uses proven high-reliability 850 nm technology and is fully tested for continuous operation in compatible Solarflare QSFP+ 40GbE server adapters. The low-power module supports multi-mode fiber media for stable data transfer.

Practical Reach Limits

The SFM40G-SR4 supports link distances up to 100 meter when used with OM3 multi-mode fiber. This reach is defined by the 40GBASE-SR4 standard over the specified media. Connections requiring longer distances or single-mode fiber fall outside the capability of this SR4 module.

How it compares

Measured against everything we stock in Drive Cages & Server Add-Ons, at today’s prices. Recalculated every night.

Price $366.99
Pricier than about 82% of the 1,119 comparable items (median $74.99).

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Specifications

Product
Brand nameSolarflare
Product typeQSFP+
Size & build
Shipping weight0.23 kg
Package size178 × 102 × 25 mm

Questions about this item

How much heat or power does the 40GBASE-SR4 QSFP+ transceiver generate when running continuously in a server?

The module is described as a low-power QSFP+ device compliant with the SFF-8436 specification, designed for efficient operation in 40-Gigabit Ethernet links over multi-mode fiber.

What cabling and connectors must I already have to use this 850nm QSFP+ transceiver?

You need multi-mode fiber patch cables with MTP or MPO connectors; the transceiver supports links up to 100 meters over OM3 multi-mode fiber.

Will this Solarflare QSFP+ transceiver work with older 10G SFP+ ports I still have in my rack?

No, the module uses a QSFP+ form factor for 40GBASE-SR4 and is compatible with Solarflare 40GbE QSFP+ server adapters, not 10G SFP+ ports.

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