December 24, 202324-way1-phase, 21xc13, 24-way, 3xc19, outlets, rackmount, switched, verticaladmin APC 24-Way Vertical Rackmount Switched PDU, 0U, 1-Phase, 21xC13 & 3xC19 Outlets – APDU9959EU3. Number of rack units required – 0U. Network Port Sharing – allows users to connect and manage multiple PDUs max.