The New 40G QSFP+ Transceivers Launched by Fiberstore

Fiberstore is proud to present the new 40G QSFP+ transceiver which delivers network speeds of up to 40Gbps that will satisfy the appetite of any application that requires increased bandwidth. The new QSFP+ transceiver is available in the format of SR QSFP+, breakout cable and DAC cable. All of these products are fully tested to 100% compatible with Cisco equipment to the highest standard.

40GBASE SR4 transceiver supports link length of 100m and 150m respectively on laser-optimized OM3 and OM4 multimode fiber cable. It originally enables high-bandwidth 40G optical links over 12-fiber ribbon cables terminated with MPO/MTP multi-fiber connectors. It integrates four data lanes in each direction with each lane to give an aggregated 40 Gbps bandwidth. Each lane supports link length of 100m on OM3 multimode fiber to 150m on OM4 multi-mode fiber. The optical transmitter incorporates a 4-channel 850nm VCSEL laser, a 4-channel input buffer and laser driver, control and bias blocks. The optical receiver incorporates a 4-channel PIN photodiode, a 4-channel TIA array, a 4 channel output buffer, control blocks. Maximum channel insertion loss allowed is respectively 1.9dB over 100m of OM3 cables or 1.5dB over 150m of OM4 cable.
QSFP+ 40G- LR4-FS:
40GBASE LR4 transceiver supports link lengths of up to 10km over a standard pair of G.652 single-module fibres with duplex LC connectors. The 40 Gigabit Ethernet signal is carried over four wavelengths. The 40GBASE LR4 transceiver converts 4 inputs channel of 10Gb/s electrical data to 4 CWDM optical signals, and multiplexes them into a single channel for 40Gb/s optical transmission.On the receiver side, the transceiver optically de-multiplexes a 40Gb/s input into 4 CWDM channels signals, and converts them to 4 channel output electrical data. The center wavelengths of 4 CWDM channels are 1271, 1291 and 1331nm. It contains a duplex LC connector for the optical interface and a 38-pin connector for the electrical interface.
QSFP+ to QSFP+ Copper Direct-Attach Cables:
QSFP+  copper direct-attach 40GBase-CR4 cables is suitable for a very short distance and offers a highly cost-effective way to establish a 40-Gigabit link between QSFP+ ports of Cisco switches within racks and across adjacent racks. FiberStore currently offers cisco passive cables in length of 1, 3, 5 meters, and active cables in length of 5, 7 and 10 meters.
Fiberstore QSFP+ modules order information:
40G-SR4-FS: 40GBase-SR4 modules for MMF, 4-lanes, 850-nm wavelength, 12-fiber MPO/MTP connector
 40G- LR4-FS: 40GBase-LR4 module for SMF, 4 CWDM lanes in 1310 nm window Muxed inside module, duplex LC connector, 10 km reach
QSFP-H40G-CU5M- FS: 40Gbase-CR4 direct-attach copper cable, 5 meter passive
QSFP-H40G-CU3M- FS: 40Gbase-CR4 direct-attach copper cable, 3 meter passive
QSFP-H40G-CU1M- FS: 40Gbase-CR4 direct-attach copper cable, 1 meter passive
Fiberstore offers reliable QSFP+ transceivers and 40g qsfp+ cable which are manufactured with high quality components and rigorously tested to ensure the compatibility, reliability and quality. All of our transceivers and cables come with lifetime warranty. If you have any questions about our products, please don’t hesitate to contact us at
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