CRS520-4XS-16XQ-RM Cloud Router Switch with Quad-Core AL52400 2 GHz CPU, 4 GB RAM, 98CX8410 switch chip, 2 x 10G Eth ports, 4 x 25G SFP28 ports, 16 x 100G QSFP28 ports, RouterOS L5, 1U rackmount enclo