55information about installing and removing a power module, see "Installing and removing a powermodule."The S6520X-54XC-UPWR-SI switch comes with the three fan tray slots empty. You must install threefan trays of the same model for the switch. In Figure 69, three LSPM1FANSB fan trays are installedin the fan tray slots. For information about installing and removing a fan tray, see "Installing andremoving a fan tray."An S6520X-54XC-UPWR-SI switch comes with a filler panel in the expansion slot. You can select anexpansion card for the switch as required. In Figure 69, an LSWM2SP2PM interface card is installedin the expansion slot. For more information about installing and removing an expansion card, see"Installing and removing an expansion card."Technical specificationsTable 9 Technical specifications of non-PoE switches (1)Item S6520X-16ST-SIS6520X-24ST-SIS6520X-18C-SIS6520X-26C-SIS6520X-26MC-SIDimensions (H× W × D) 43.6 × 440 × 360 mm (1.72 × 17.32 × 14.17 in)Weight ≤ 5 kg (11.02 lb) ≤ 5 kg (11.02 lb) ≤ 5 kg (11.02lb)≤ 5 kg (11.02lb)≤ 6 kg (13.23lb)Console port• 1 × micro USB console port• 1 × serial console port• Only the micro USB console port is available when you connect both ports.USB port 1 1 1 1 1ManagementEthernet port 1 1 1 1 1SFP+ port16 (The twohighest-numbered SFP+ portsform combointerfaces withtheircorresponding1/10GBASE-TautosensingEthernet ports,respectively.)24 (The twohighest-numbered SFP+ portsform combointerfaces withtheircorresponding1/10GBASE-TautosensingEthernet ports,respectively.)16 24 N/A1/10G BASE-TautosensingEthernet port2 2 N/A N/A N/A5G/2.5G/1000/100BASE-TautosensingEthernet portN/A N/A N/A N/A 24Expansion slot N/A N/A 1, on the rearpanel1, on the rearpanel1, on the rearpanelPower moduleslot2, on the rearpanel2, on the rearpanel2, on the rearpanel2, on the rearpanel2, on the rearpanelInput voltagePSR75-12A (not supported on S6520X-26MC-SI):• AC input{ Rated voltage range: 100 to 240 VAC @ 50/60 Hz