Mikrotik's new Cloud Router Switch CRS354-48G-4S+2Q+RM has 48 x 1G RJ45 ports, 4 x 10G SFP+ ports, and 2 x 40G QSFP+ ports in a 1U rackmount case with dual power supplies! ::
Mikrotik CRS354-48G-4S+2Q+RM Ultimate Switch 48 x 1G RJ45 4 x 10G SFP+ and 2 x 40G QSFP+ ports