Tukzer AC071 Biometric Fingerprint Attendance Time Clock Supports Fingerprint / Password / ID Card Store 2,000 fingerprint templates and 100,000 transaction records USB Flash Drive Download + USB + TCP Communication Fingerprint + Password + ID Card Strictly follow the national security product standard.Suitable for the entrances and exits of office, factory, hotel, school,etc. Operation system: Windows XP, Windows Vista, Windows Server 2003/2008, Windows 7.