400GBASE-SR4 QSFP-DD PAM4 850nm 50m DOM MPO-12/APC MMF Optical Transceiver Module for FS Switches
P/N: QDD-SR4-400G#226583
by D***h on 11/04/2024
The maximum transmission distance with an OM4 multimode fiber optic patch cable is 50 meters.
by FS.com on 11/05/2024
by N***n on 11/04/2024
It can be linked to QSFP112 or OSFP port NICs. It is ideal for short-range switch and NIC connecting scenarios because the NIC side is 4-channel and cannot be connected to the standard short-range 8-channel QDD-400G-SR8 module.
by FS.com on 11/05/2024
by J***b on 11/04/2024
Both are suitable for 400G short-range transmission schemes with 8x50G PAM4 modulation on the electrical side. But 4x100G PAM4 modulation on the optical side of 400GBASE-SR4; the optical side of the 400GBASE-SR8 uses 8x50G PAM4 modulation.
by FS.com on 11/05/2024
Yes, all three types of modules use 4x100G PAM4 for the optical side modulation mode, and the QSFP-DD/OSFP/QSFP112 simply describes the module's physical form factor.
by FS.com on 11/04/2024
by A***y on 11/03/2024
It is not possible to use QSFP-DD optical modules, such as QDD-SR4-400G optical transceivers, in OSFP ports since OSFP and QSFP-DD have entirely distinct form factors.
by FS.com on 11/05/2024