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Pre-Term Fiber Assemblies
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Pre-Term Fiber Assemblies
MTP Trunk Assemblies
MTP Fanout Cables
MTP Cassettes
Fiber Optic Enclosures
Fiber Optic Patch Cables
Ethernet Patch Cables
Ethernet Cable Bundles
Unterminated Fiber By The Foot
This transceiver from QuickTreX® is quad small form-factor pluggable module for serial optical data communications such as IEEE 802.3cu 400GBASE-FR4. It is with the QSFP-DD 38-pin connector to allow hot plug capability. The internally ac coupled high speed serial I/O simplifies interfacing to external circuitry. A serial EEPROM in the transceiver allows the user to access transceiver digital diagnostic monitoring and configuration data via the 2-wire QSFP-DD Management Interface.
Transmitter Section
The transmitter consists of directly modulated uncooled CWDM 4 wavelength 1271, 1291, 1311, and 1331 nm EML lasers and drivers. In addition, this component is also class 1 laser that compliant with International Safety Standard IEC-60825-1:2014. It complies with EN60825-1:2014/A11:2021 and FDA 21 CFR 1040.10 and 1040.11
Receiver Section
The receiver incorporates InGaAs PIN photodiodes integrated with trans-impedance preamplifiers (TIA) and limiting post-amplifier ICs.
FEATURES
- Single +3.3V Power Supply
- Lane Bit Rate 106.25 Gb/s with PAM4
- CWDM4(1271/1291/1311/1331nm) EML laser and PIN receiver
- Up to 2km on SMF
- 8 x53.125Gb/s with PAM4 electrical interface (400GAUI-8)
- Compliant to IEEE 802.3cu & QSFP-DD MSA
- Class 1 Laser International Safety Standard IEC-60825-1:2014 Compliant. Complies with EN60825-1:2014/A11:2021 and FDA 21 CFR 1040.10 nd 1040.11
- Up to 25.78Gb/s data rate each wavelength
- Commercial Operation Temperature: 0 °C to +70 °C
- RoHS, REACH, TAA, and NDAA Compliant
- UL Listed, and CE and FCC Certified
- IS09001 Certified Manufacturing
APPLICATIONS
- 400GBASE-FR4 400G Ethernet Links
- Data Center and Cloud
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Product Reviews (20)
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ProductSections
Awesome price fast service and everything arrives in perfect condition and worked perfectly
M Kramer
LANshack's customer service and tech support is great! Easy to work with and the products were delivered on time!
Guest
Great product and service
customer
Easy to work with and shipment came exactly as ordered.
Eric S.
Item was what I ordered, came well packed.
Don’t Just Take Our Word For It
Nov 25, 2025
Product was as advertised
Product was as advertised. Shipping was on timeJohn Olson
JO
Feb 25, 2026
fast service and excellent product
fast service and excellent product
JC STRAND
Feb 10, 2026
Great products
Best RJ45 crimpers!
Dave
Apr 04, 2026
They do what they say
They do what they say. No BS
gavin714
May 05, 2026
Superior product/ Superior service
It was particularly useful to me that I was updated regularly about the status of my orders. The products that I purchased were superaltive in every way and exceeded my expectations...
Dr. Craig Smestad
Dec 30, 2025
Quick shipment
Quick shipment. custom quality cable!
Irwin Spector
Apr 15, 2026
Great Customer Service and received the…
Great Customer Service and received the product faster than expected.
customer
Jan 07, 2026
Great company great items
Great company great items
Joseph Leone
Dec 23, 2025
The product was exactly as ordered
The product was exactly as ordered. The only criticism would be a real-time line on shipping and expected delivery.
D. L.
Dec 09, 2025
Great team.
Open and clear lead times which they met or exceeded expectations. Quality product.
JC
Apr 17, 2026
Great prices ++
Great prices, quality and delivery speed
thanks
george
George
Apr 08, 2026
everything worked as expected
everything worked as expected. Nice pull sock set up.
customer
Apr 02, 2026
Easily ordered exactly what I needed
Easily ordered exactly what I needed. Once I got a shipping label item was delivered quickly and was packaged nicely. Would order from here again.
customer
Apr 14, 2026
Great Custom Cables
Great product, exactly what I needed and fairly quick shipping considering they are custom cables! Will definitely be ordering more.
Matt S
May 30, 2026
Excellent Customer Service and Resolution
Tom personally reached out to me, took ownership of the situation, and worked to get my order resolved. He communicated with me directly, ensured the order was shipped, refunded the shipping charges, and provided a discount for the inconvenience.
What stands out most is the level of customer service and accountability shown throughout the process. It is refreshing to see a company stand behind its customers and make things right when an issue occurs.
I received my cable, the issue has been resolved, and I appreciate the effort Tom and his team put into correcting the situation. Based on how this was handled, I would not hesitate to do business with LANshack again.
Thank you, Tom, for your professionalism and commitment to customer service.
Lstargel
Dec 23, 2025
Excellent company with great speed
Excellent company with great speed, accuracy of products provided and very easy to work with in my experience.
Cline Electric
Feb 27, 2026
LANshack is the BEST!
Online ordering process was quick and easy. We are a non-profit organization and the LANshack team made the tax exemption process quick and easy. Fast shipping is especially appreciated! Thanks so much!
Non-Profit Customer
Feb 17, 2026
LANshack: Best custom CAT8 ethernet cable on the market!
I needed a custom 55 foot S/FTP (Shielded Foiled Twisted Pair) CAT8 indoor ethernet cable for ethernet backhaul between two Eero mesh routers. I did tons of research (including Grok) and I came across LANshack.com. They have the thickest 23AWG wire in their custom CAT8 cable vs 26AWG on Amazon (lower number is thicker; 23AWG wire has roughly twice the cross-sectional area of 26AWG). Excellent price per foot, and this cable is thick! Very quick turnaround once you order from them. I am very pleased with LANshack and I will order from them again for future projects!
Daniel T.
Mar 30, 2026
Product was as ordered and delivered in…
Product was as ordered and delivered in a timely manner. Worked perfectly. Will use again in the future.
Brian Rich
May 07, 2026
Products were available and ready to…
Products were available and ready to ship quickly. Products worked as they were supposed too.
Robert Butler
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