Super Capacitor UPS for RPI Uninterruptible Power Supply DC9‑24V Input DC5V3A Output 10‑60S Power Down Endurance Data Save 4S Item Type: Super Capacitor UPS for RPI Material: PCB Power Input: 9-24VDC (5.5x2.1mm DC power socket or KF128 terminal) Power Output: 5VDC (USB 2.0 or KF128 terminal), maximum current 5V3A Super Capacitor: 25F Charging Current: limited to 1.4A, about 3min to fully charge capacitor Discharge Current: 5V3A (continuous) when connected to external power supply, 5V3A (within 10s) when only super capacitor output Power Down Detection: 2.54mmx2p, 3V indicates external power source, 0V indicates power loss Power Indication: DCIN green indicates external power source connection, 5V OUT red indicates 5V output, Vcap green light brightness changes with capacitor voltage. Brightest when capacitor is full, off when capacitor is discharged Product Size: Approx. 90 x 56mm / 3.5 x 2.2in Locating Hole: Approx. 3.5mm / 0.14in