Internal I/O Number of CPU fan connectors: 1 Number of SATA III connectors: 4 CPU fan connector: Yes Thunderbolt headers: 1 Chassis intrusion connector: Yes USB 3.2 Gen 1 (3.1 Gen 1) connectors: 1 ATX Power connector (24-pin): Yes EPS power connector (8-pin): Yes Front panel audio connector: Yes Number of chassis fan connectors: 4 12V power connector: Yes USB 3.2 Gen 2 (3.1 Gen 2) connectors: 1 USB 2.0 connectors: 2