Finisar FTCD4323E2PCL Compatible 400GBASE-LR4 QSFP-DD Transceiver

Finisar
QSFP-DD
400G
Duplex
10 km
FTCD4323E2PCL Finisar Compatible 400G QSFP-DD 10KM Transceiver

Finisar compatible FTCD4323E2PCL - Key Features

  • Compatibility: Finisar
  • Media Type: Single-Mode Fiber (SMF)
  • Connector: Double LC/UPC
  • Fiber Count: Duplex
  • Maximum Distance: 10 km
  • Average Link Budget: 7.1 dB
  • Tx Wavelength: CWDM 4 Ch
  • Supported Data Rate: 425 Gbps
  • DDM/DOM: Supported
  • Forward Error Correction (FEC): Host FEC Supported
  • Temperature Range: Standard 0°-70°C

Finisar FTCD4323E2PCL Price

Lead timeMade to Order - 2 Weeks
Standard recommended retail price ex VAT:
361.86
Choice of 0+
Telecoms & Integrators Globally

Finisar compatible FTCD4323E2PCL Specifications

Form Factor
QSFP-DD
Modulation
PAM4 (Pulse Amplitude Modulation 4-level)
Media Type
Single-Mode Fiber (SMF)
Connector
Double LC/UPC
Fiber Count
Duplex
Maximum Distance
10 km
Average Link Budget
7.1 dB
TX Wavelength
4-channel CWDM (1271/1291/1311/1331 nm)
RX Wavelength
4-channel CWDM (1271/1291/1311/1331 nm)
Supported Data Rate
425 Gbps
Supported Ethernet Applications
400G Ethernet (425 Gbps)
DDM/DOM
Supported
Forward Error Correction (FEC)
Host FEC Supported
CDR (Clock and Data Recovery) chip
Supported
Transmitter Type
EML Laser
Tx Wave Bandwidth
73 nm (1264.50–1337.50 nm)
Average Launch Power (Min) Each Lane
-2.8 dBm
Average Launch Power (Max) Each Lane
4 dBm
Extinction Ratio (Min)
3.5 dB
Receiver Type
PIN photodiode
RX Wave Bandwidth
73 nm (1264.50–1337.50 nm)
Average Receiver Sensitivity (Min) Each Lane
-9.1 dBm
Average Receiver Sensitivity (Max) Each Lane
4 dBm
Receiver Overload
4.5 dBm
Temperature Range
Standard 0°-70°C
Storage Temperature
-40° to 85°C
Relative Humidity
5 to 85%
Power Consumption (Max)
9 W
Power
+3.3V single power supply
Compliance
CE;RoHS;Class 1 FDA and IEC60825-1 Laser Safety Compliant;100G Lambda MSA;400GBASE-LR4;IEEE 802.3bs;CMIS V4.0;QSFP-DD MSA

Finisar compatible FTCD4323E2PCL Datasheet

v4

Complete technical specifications and product details

Updated:Mar 16, 2026Format:PDF

Finisar compatible FTCD4323E2PCL Description

EdgeOptic's FTCD4323E2PCL compatible is a Finisar-coded version of the EdgeOptic 400G-QSFP-DD-11 multi-vendor 400GBASE-LR4 QSFP-DD transceiver. It matches the optical parameters of the Finisar original and is built to the same QSFP-DD MSA mechanical and electrical envelope, so it serves as a direct replacement for the OEM module in any host with QSFP-DD ports.

The module carries four-channel CWDM optics on 1271, 1291, 1311 and 1331 nm, with an EML transmitter per lane and a PIN photodiode receiver. Signaling is PAM4 at a 425 Gbps aggregate line rate, delivering 400G Ethernet over a duplex LC/UPC interface on standard single-mode fiber. The link supports a 7.1 dB average optical link budget, which covers reaches up to 10 km over OS2 fiber. Average launch power per lane runs from −2.8 dBm to +4 dBm, and receiver sensitivity is rated at −9.1 dBm per lane. Distance is an indicative figure derived from the average link budget and typical fiber attenuation, so verify the loss on the installed span during commissioning.

The 400GbE electrical and rate envelope is defined by IEEE 802.3bs, while the LR4 optical interface follows the 100G Lambda MSA 400G-LR4-10 specification. The host system supplies RS(544,514) KP4 forward error correction, and the module includes clock and data recovery on both the host and line sides. Digital diagnostic monitoring reports temperature, supply voltage, laser bias, transmit power and receive power per lane, and the module is managed over CMIS V4.0. It operates across a 0 to 70 degrees C case temperature range and draws up to 9 W. The 400G-QSFP-DD-11 platform is a 400GbE-only module: it does not carry Fibre Channel, OTN or SONET traffic.

FTCD4323E2PCL is the Finisar designation engineers search and order by; the product line is now published under Coherent. EdgeOptic produces this compatible with Finisar-recognized EEPROM so it is read correctly by host equipment with QSFP-DD ports. The module is CE and RoHS certified, rated Class 1 laser per IEC 60825-1, and compliant with the QSFP-DD MSA. It suits internet service provider aggregation and backbone links, metro transport and data center core interconnect.

Backed by 15+ years of EdgeOptic compatibility engineering across vendor optical platforms, this module is made to order on a 2-week lead time and ships with a lifetime warranty. For coding queries or platform-specific deployment questions, contact our sales team.