The LINK QSFP+ transceivers are high performance, cost effective modules which is the best for all 40G network interface, The UT-940G series can install into Switch products with QSFP+ interface and can be compatible with Cisco & other brands.
 

LINK 40G QSFP+ transceivers support 40G Ethernet. These portfolio include SR4 150m, SR Bi-Di 150m, SWDM4 350m provide extended connectivity with Multi-mode fiber (MM) and LR4 10km, ER4 40km, and ZR4 80km with Single-mode fiber (SM).
 

LINK QSFP+ transceivers are a hot-pluggable (or hot-swappable). You can plug-in and out the transceiver to/from any QSFP+ port without having to power down the network devices.

• Hot-Pluggable and support data rate up to 40Gbps
• Compliant with IEEE 802.3ba 40Gigabit Ethernet standard
• Compliant with QSFP+ Multi Source Agreement (MSA)
• 4 SWDM technology for SWDM4
• Compliant to SFF-8436, SFF-8636
• Digital Diagnostic Monitoring Interface (DDMI) compliant to SFF-8472
• All-metal housing for superior EMI performance
• Class 1 laser and complies with EN 60825-1
• Low power consumption, Single +3.3V Power supply
• Single MPO connector for SR4
• Operating temperature from 0°C to 70°C
• Cost effective QSFP+ solution, enables higher port densities and greater bandwidth
• RoHS Compliant