• 4 independent full-duplex channels
• Up to 11.2Gbps data rate per channel
• MTP/MPO optical connector
• QSFP+ MSA compliant
• Digital diagnostic capabilities
• Capable of over 100m transmission on OM3 multi-mode ribbon fiber
• CML compatible electrical I/O
• Single +3.3V power supply
• Operating case temperature: 0°C to 70°C(Standard), -40°C to 85°C (Industrial)
• XLPPI electric interface (with 1.5W Max power)
• RoHS-6 compliant

• Compliant with 40G Ethernet IEEE802.3ba and
• 40GBASE-LR4 Standard
• QSFP+ MSA compliant
• Compliant with QDR/DDR Infiniband data rates
• Up to 11.2Gbps data rate per wavelength
• 4 CWDM lanes MUX/DEMUX design
• Up to 10km transmission
• Operating case temperature: 0~70C
• Maximum 3.5W operation power
• RoHS compliant

• Four-channel full-duplex transceiver modules            
• Transmission data rate up to 14.025Gbit/s per channel
• 4 channels 850nm VCSEL array
• 4 channels PIN photo detector array
•  Low power consumption <1.5W
• Housing isolated from connector ground
• Operating case temperature 0°C to +70°C
• 3.3V power supply voltage
• RoHS 6 compliant
• Hot Pluggable QSFP form factor
• Maximum link length of 100m on OM3 Multimode Fiber (MMF)and 150m on OM4 MMF
• Single MPO connector receptacle
•  Built-in digital diagnostic function

QSFP/QSFP+ Passive Electrical Loopback FTCQ-XLB is used for testing QSFP/QSFP+ transceiver ports in board level test. The electrical loopback provides a cost effective low loss method for QSFP/QSFP+ port testing. The FTCQ-XLB is packaged in a standard MSA housing compatible with all QSFP/QSFP+ ports.

基于IEEE-100GBASE-LR4规范
，此产品典范功耗只有3.5W
，比目今业界最好的100G CFP4模块功耗低40%。它接纳最先进的100G传输手艺为数据中央提供机架交流机和焦点网之间的毗连
，比40G QSFP计划提高了150%的面板带宽密度。相比于目今只支持12个模块/单板的100G CFP2
，QSFP28可以支持多达48个模块/单板。100G LR4 QSFP28为现在超大型数据中央一直增添传输距离的需求提供了理想解决计划
，并将引领单模光纤在数据中央的使用。

F-tone’s QSFP28-100G-SR4 module is a 4-channel transceiver capable of transmitting and receiving 100 Gbps simultaneously. F-tone’s QSFP28-100G-SR4 transceiver performs at high speeds while consuming extremely low power—allowing for > 50% reduction in power consumption compared to 4 SFP+ inF-tonerconnects.