400 Mbps and the 2/2 driver-receiver count — what they decide
The 400 Mbps data rate places this part in the lane for unidirectional serial links — think camera video streams, display interfaces, or point-to-point backplane data channels where the LVDS signaling keeps EMI under control. The 2/2 driver/receiver configuration means the part can serve either one full-duplex link (one driver out, one receiver in) or two independent simplex channels. If your BOM needs bidirectional communication on a single twisted pair, this full-duplex part is the right call; a half-duplex transceiver would need direction control on the same pair.
Supply and temperature — the production-fit check
If your design requires grade 0 (-40°C to 150°C), this part does not cover it; capable is not qualified.
This is a production-grade part you can specify into a BOM without worrying about near-term obsolescence.