• 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

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，此产品典型功耗只有3.5W，比当前业界最好的100G CFP4模块功耗低40%。它采用最先进的100G传输技术为数据中心提供机架交换机和核心网之间的连接，比40G QSFP方案提高了150%的面板带宽密度。相比于当前只支持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为目前超大型数据中心不断增加传输距离的需求提供了理想解决方案，并将引领单模光纤在数据中心的使用。

F-tone 40GBASE-LR4 QSFP Module supports link lengths of up to 10km over a standard pair of G.652 single-mode fiber with duplex LC connectors. The 40Gbps QSFP+ transceiver is well suited for Infiniband and 40GBASE-LR4 applications. It combines the higher density attractions of parallel modules with some of the key advantages normally associated with SFP+ based modules.

100G QSFP28 AOC，P/N: QSFP28-AOC-XXX，在OM3多模光纤上最长传输距离为100m
100G QSFP28 SR4，P/N: QSFP28-SR4，在OM3多模光纤上最长传输距离为100m
100G QSFP28 LR4，P/N: QSFP28-LR4，在单模光纤上最长传输距离为10km
100G QSFP28 PSM4，P/N: QSFP28-PSM4，在单模光纤上最长传输距离为2km

100G QSFP28 ER4，P/N: QSFP28-ER4，在单模光纤上最长传输距离为30km