This is a fixed-port fixed-form-factor switch chassis, not a modular line card. The MSN3700-CS2F uses the Spectrum-2 ASIC with up to 6.4 Tb/s of switching capacity. The 32 QSFP28 ports each operate natively at 100GbE, with optional breakout to 2x50GbE or 4x25GbE per port using QSFP28 breakout cables.
eBay