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ACR120 Smart Card Contactless Reader

ACR120 Smart Card Contactless Reader



  • PC-linked
  • USB
SKU: ACR120SU-TK-RACS Category: Tags: , ,

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Weight 0.5 kg


The ACR120 is a compact and cost-effective contactless reader and writer. It is developed based on the 13.56 MHz contactless smart card (RFID) technology, supporting Mifare and ISO 14443 Type A and B cards. Its proximity operating distance is up to 5 cm, depending on the type of contactless tag in use.

The versatile reader is available in both USB and Serial interface version, which can easily be integrated into a PC environment as well as other systems. It is ideal for a broad range of applications, including public transport terminals, physical and logical access controls, and even vending machines.

The operation of ACR120 is extremely quick and convenient. All read/write operations can be done by waving the contactless card near the device. Moreover, its compact design enables it to be mounted and located anywhere with ease. ACR120 is also available in module form, giving you maximum development flexibility.


  • USB PnP or serial RS232 interface (Also available in RS485 upon request)
  • Read and write functionality
  • Built-in antenna for contactless tag access, with card reading distance of up to 50 mm
  • Supports major contactless smart cards conforming to ISO 14443 Type A and B in the market
  • Supports Mifare cards, including new Mifare Ultralight C and Mifare Plus SL1
  • Built-in anti-collision feature (at least 1 card is detected when multiple cards are presented)
  • Selective card polling capability (especially useful when multiple cards are presented)
  • Operation LED
  • Buzzer
  • OEM PCBA module version (Upon request)


  • Public transportation terminals
  • Automatic fare collection
  • Vending machines
  • Physical access control
  • Logical access control
  • Time and attendance
  • Contactless public phones
  • Metering

Tech Specs

Serial Interface
Type: RS232 (Standard)
Operation Baud Rate: 9,600-115,200 bps
Power Source: From PS/2 mouse interface
Supply Voltage: Regulated 5 V DC (4.75 – 5.25V)
Supply Current: 200 mA
Universal Serial Bus Interface
Power source: From USB
Speed: 1.5 Mbps (Low Speed)
Supply Voltage: Regulated 5 V DC
Supply Current: 200 mA
Contactless Smart Card Interface
Standard: ISO 14443 A & B
Protocol: Mifare® Classic protocols, Mifare® DESFire protocols, Mifare Mini protocols Smart card read / write speed: 106 kbps
Dimensions: 120 mm (L) x 73 mm (W) x 20 mm (H)
Weight: 155 g (with cable)
Material: ABS
Color: Metallic Silver Grey

Antenna Size: 55 mm x 85 mm
Operating distance: up to 50 mm
Operating Frequency
Operating Frequency: 13.56 MHz

Operating Conditions
Temperature: 0 – 50° C
Humidity: 10% – 80%

Cable Connector
Length: 1.5 m (USB/ Serial RS232)

CE, FCC, RoHS Compliant, OFTA

Device Driver Operating System Support
Windows ® 98, ME, NT (Serial), 2000, Server 2003, XP, Vista, Server 2008, Server 2008 R2, 7 Linux