TIFNEX catalog
400G transceivers
400G QSFP-DD, OSFP and QSFP112 optics for AI clusters, spine-leaf fabrics and 400ZR data center interconnect.
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Arista Compatible 400GBASE-FR4 QSFP112 PAM4 1310nm 2km Duplex LC SMF Optical Transceiver Module
In stock
Buying guide
400G transceivers from TIFNEX
400G is the backbone speed of new AI and cloud data centers. TIFNEX supplies 400G modules in all three form factors: QSFP-DD for Ethernet switches, OSFP for NVIDIA InfiniBand NDR and high-power ports, and QSFP112 for newer compact platforms.
Available types include SR8 and SR4 (multimode, 50m to 100m), DR4 (500m, MPO-12 single-mode), XDR4 and FR4 (2km), LR4 (10km) and coherent ZR and ZR+ modules for data center interconnect up to 40km to 80km and beyond. Modules are coded for NVIDIA, Cisco, Arista, Juniper, Dell, Nokia and Ciena.
Choosing between QSFP-DD and OSFP? Our QSFP transceivers guide compares them, and our AI data center networking guide covers 400G and 800G fabric design.
Common questions
What is the difference between 400G QSFP-DD and OSFP?
Both carry 8 x 50G lanes. QSFP-DD is smaller and backward compatible with QSFP28 ports. OSFP is larger with better cooling and is used on NVIDIA InfiniBand and some high-power Ethernet switches. The two are not interchangeable.
Can a 400G DR4 be broken out to 4 x 100G?
Yes. 400G DR4 connects to four 100G DR modules over single-mode MPO-to-LC breakout cabling, up to 500m.
Do you supply 400ZR coherent modules?
Yes. 400G ZR and ZR+ QSFP-DD coherent modules are available for data center interconnect and metro links.
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