The ZKTeco UA300 is a compact and efficient fingerprint time and attendance terminal designed for small to medium-sized businesses. It supports up to 3,000 fingerprint templates and 10,000 optional ID/Mifare/HID cards, with a record capacity of 100,000 logs. The device features a 2.8-inch TFT color screen and offers fast verification speeds of less than 1 second. Connectivity options include TCP/IP, RS232/485, and USB Host/Client, facilitating easy integration into existing systems. Standard functions encompass Web Server, SMS, Automatic Status Switch, Self-Service Query, Work Code, T9 Input, 9-Digit User ID, DST, and Scheduled Bell. Optional features include ADMS, External Printer and Bell, and Photo ID. The device operates on a DC 5V 0.8A power supply and functions effectively in temperatures ranging from 0°C to 45°C and humidity levels between 20% and 80%. Its compact dimensions of 180 × 135 × 37 mm and weight of 0.70 kg make it suitable for various business environments.