RW400 Reader / Writer 6121

RW400 Reader / Writer 6121 Wall Switch Smart Card Reader

HID Reader RW400 Reader / Writer 6121 Wall Switch Smart Card Reader

HID iCLASS smart reader / writers and cards make access control and read/write applications more powerful, more versatile, and most importantly, offer enhanced security through encryption and mutual authentication.

At the same time, HID iCLASS is user-friendly, delivering the convenience, affordability and reliability of proximity technology, for which HID is known worldwide.

Using the 13.56 MHz technology platform, the HID iCLASS RW400 contactless smart card reader/writer combines the longer read range of proximity with the power and heightened security of smart card technology.

Supporting read / write applications, the HID RW400 reads/writes user data to HID iCLASS credentials that offer either 2k bit (256 Byte), 16k bit (2k Byte) or 32k bit (4k Byte) of data storage. Read / write applications include IT secure authentication, biometric template storage, digital cash, time and attendance, equipment / material use or checkout and transit passes.

Key Features : Experience enhanced versatility :
  • Use one reader to read standard proximity format data from HID iCLASS credentials or unique serial numbers from MIFARE® cards.
  • Confidently install the reader knowing that the Wiegand output easily interfaces with most existing Wiegand protocol access control panels.
  • To support read/write applications, the bi-directional RS232 serial port provides connection to a PC or microcontroller.
Appreciate advanced security :
  • All RF data transmission between the card and reader is encrypted using a secure algorithm.
  • By using industry-standard encryption techniques and advanced key management systems, iCLASS reduces the risk of compromised data or duplicated cards.
Be secure in knowing :
  • HID iCLASS complies with the ISO 15693 standard for contactless smart card technology. Standards are important in smart card technology because they make it possible for many equipment and application developers to work with the smart card technology and create a broader range of uses for the card.
  • HID iCLASS technology can extend the use of your access control credential into other applications today and tomorrow.

Specifications :

Typical Maximum Read Range*
  • HID iCLASS Card: Up to 4” (10.2cm)
  • HID iCLASS Key/Tag: Up to 1.25” (3.2cm)
  • HID MIFARE / DESFire Card (CSN): Up to 2” (5.1cm)
Dimensions : 3.3” x 4.8” x 1.1” (8.5cm x 12.2cm x 2.8cm)
  • Card Compatibility :
  • The HID iCLASS RW150 reader is compatible with all iCLASS credentials. The reader's versatility allows it to read credentials meeting several ISO standards :
    • 15693 – read/write; 2k bit (256 Byte), 16k bit (2k Byte) and 32k bit (4k Byte) iCLASS credentials
    • 14443A – read only; MIFARE (serial number)
    • 14443B – read/write; 16k bit (2k Byte) iCLASS credentials
Warranty : LifeTime

Frequently Asked Questions

Q1. What is the HID iCLASS RW400 Reader/Writer 6121?

The HID iCLASS RW400 Reader/Writer 6121 is a wallswitch-format 13.56 MHz contactless smart card reader/writer that combines the long read range of proximity technology with the heightened security of smart card technology. It reads/writes to iCLASS credentials with 2k bit, 16k bit, or 32k bit data storage.

Q2. What card standards does the HID RW400 support?

The HID RW400 supports ISO 15693 (read/write for all iCLASS credential sizes), ISO 14443A (read-only MIFARE serial number), and ISO 14443B (read/write for 16k bit iCLASS credentials), covering all major 13.56 MHz contactless smart card formats.

Q3. What read/write applications can the HID RW400 enable?

The HID RW400 supports IT secure authentication, biometric template storage, digital cash, time and attendance, equipment/material checkout, and transit passes — making it a versatile multi-application reader/writer for enterprise deployments.

Q4. What is the read range of the HID iCLASS RW400?

The HID RW400 reads iCLASS cards up to 4" (10.2 cm), iCLASS Key/Tag up to 1.25" (3.2 cm), and MIFARE/DESFire cards (CSN) up to 2" (5.1 cm). It measures 3.3" x 4.8" x 1.1" and carries a lifetime warranty.

Q5. How does the HID RW400 provide security for smart card transactions?

All RF data transmission between the card and the HID RW400 is encrypted using a secure algorithm. Using industry-standard encryption and advanced key management systems, iCLASS technology reduces the risk of compromised data or duplicated cards.