acr 1281 u

Read/write speed of up to 848 kbps
Built-in antenna for contactless tag access, with card reading distance of up to 50 mm (depending on tag type)
Supports ISO 14443 Part 4 Type A and B cards and MIFARE series
Built-in anti-collision feature (only one tag is accessed at any time)
Supports extended APDU (max. 64 kbytes)
Supports ISO 7816 Class A, B and C (5 V, 3V and 1.8 V)
Supports CAC (Common Access Card)
Supports PIV (Personal Identity Verification Card)
Supports microprocessor cards with T=0 or T=1 protocol
Supports memory cards
ISO 7816-compliant SAM slot