100G QSFP28 ER4 Optical transceivers
● Compliant to Ethernet 100GBASE-ER4 
● Supports 103.1Gb/s aggregate bit rate
● Transmitter: cooled 4x25Gb/s LAN WDM TOSA (1295.56, 1300.05, 1304.58, 1309.14nm)
● Receiver: 4x25Gb/s APD ROSA
● Up to 40km reach for G.652 SMF
● Duplex LC optical receptacle
● 4x25G electrical interface (OIF CEI-28G-VSR)
● RoHS-10 compliant and lead-free
● Single +3.3V power supply
● Maximum power consumption 4.5W
● Case operating temperature
 Commercial: 0 ~ +70oC
 Extended: -10 ~ +80oC
 Industrial: -40 ~ +85oC

HTF 100G QSFP28 ER4 transceiver module designed for optical communication applications compliant to Ethernet 100GBASE-ER4 Lite standard. The module converts 4 input channels of 25Gb/s electrical data to 4 channels of LAN WDM optical signals and then multiplexes them into a single channel for 100Gb/s optical transmission. Reversely on the receiver side, the module de-multiplexes a 100Gb/s optical input into 4 channels of LAN WDM optical signals and then converts them to 4 output channels of electrical data.

100GBASE-ER4 Ethernet Links
Infiniband QDR and DDR interconnects
Client-side 100G Telecom connections

Compatible brands 
HTF optional transceiver have been successfully tested with below brands:
HTF 100GBASE-ER4 QSFP28 1310nm 40km DOM LC SMF Compatible with the following brand and more
Cisco QSFP-100G-ER4L-S Arista Networks QSFP-100G-ER4
Juniper Networks 100GBASE-ER4 Brocade 100 GBPS-ER4
Dell QSFP28-100G-ER4 Extreme Compatible 100GBASE-ER4
HW 02311YXR H3C QSFP-100G-ER4-SM1310
Ciena XCVR-Q30V31 Mellanox QSFP28-ER4-100G
Generic Compatible 100GBASE-ER4 FS QSFP28-ER4-100G
Edge-Core ET7402-ER4 Alcatel-Lucent QSFP28-100GE-ER4
Avago QSFP28-ER4-100G Allied Telesis QSFP28-ER4 
MRV QSFP28-100GE-ER4 Chelsio SM100G-ER4 
D-Link DEM-Q28X40Q-ER4 F5 Networks F5-UPG-QSFP28-ER4
Fortinet FG-trAN-QSFP28-ER4 Mikrotik Q28+31DLC40D
Palo Alto Networks PAN-100G-QSFP28-ER4
Check Point CPAC-tr-100ER-SSM160-QSFP28-C
Support Customized 100GBASE-ER4 QSFP28 1310nm 40km DOM LC SMF Module

Ordering Information
Part Number Package Data Rate Reach Wavelength TX output RX Sensitivity Power Consumption Interface
HTQS-HM85S QSFP28 SR4 100Gbps 100m 850nm -8.4~2.4dBm -10.3dBm <2W MPO/MTP
HTQS-HS4CL QSFP28 LR4 100Gbps 10km LAN WDM -4.3~4.5dBm  -10.6dBm <3.5W LC
HTQS-HS4CE QSFP28 ER4 100Gbps 40km LAN WDM -2.9~4.5dBm  -14.6dBm <4.5W LC
HTQS-HS4CZ QSFP28 ZR4 100Gbps 80km LAN WDM +2.0 ~ +6.5dBm -28dBm <6.5W LC
HTQS-HSC4CL QSFP28 CWDM4 100Gbps 2km CWDM -6.5~2.5dBm  -10dBm <3.5W LC
HTQS-PSM4L2 QSFP28 PSM4 100Gbps 2km 1310nm -6.0~2.0dBm  -11.3dBm <3.5W MPO/MTP

If you have customized requirement for the TX output, RX Sensitivity etc, contact HTF sales online or leave message. 
HTF team will support you within 24 hours.  
Submit the following information then can download and know more