N9K-X9636PQ is an aggregation line card providing 36 40GE QSFP front panel ports. It has three network forwarding engines for packet forwarding, each supporting 12 40GE front panel ports and 12 internal ports to the fabric modules (clocked at 42 Gbps rate to accommodate the internal frame overhead). All of the 36 40GE front panel ports on N9K-X9636PQ support the 4x 10GE break-out mode to operate as 4 individual 10GE ports. This allows the line card to provide up to 144 10GE SFP+ ports.