Overview
HID? is a provider of secure identity solutions. Used primarily for large secure deployments and not intended for hobbyist or consumer use.
In 2011, NYU migrated the entire university ID system to use this. Because of the migration, the data on each NYU ID card is encrypted and is unique to every organization.

The RFID readers at the NYU Bobst Library is the RP40 Multiclass reader.
The RP40 is a multi-technology card reader designed for customers upgrading their current card system from HID Prox to iCLASS® credentials. With the RP40 reader, the customer has the ability to transition to smart cards over time while incorporating the use of multiple card technologies within a single building or across multiple facilities.
Unlike contactless smart card serial number readers, with the RP40 multiCLASS™ reader, you get enhanced security through mutual authentication and data encryption.
Key Features
Higher card to reader security than CSN only multi-technology readers.
Eliminates card format transition problems.
Easy to customize to ensure security.
No reader "confusion" when using combination cards.
Widest variety of readers available for mixing and matching
Custom site keys for maximum security
Reads the following RFID cards:
*125kHz – HID, Indala
*EM4102 or AWID proximity
*13.56MHz – iCLASS
*ISO 15693 CSN (MyD, ICODE, Tag it)
*ISO 14443A CSN (MIFARE, DESFire)
*US Government PIV
*ISO 14443B CSN, FeliCa™ IDm
*CEPAS CAN or CSN
Typical Maximum ReadRange HID Prox ISO Card: 2.5 – 3.5” (6.5 - 9.0 cm) HID Prox Keyfob/Tag: 1.0 – 2.25” (2.5 - 5.5 cm) Microprox® Tag: 1.0 – 1.25" (2.5-3.2 cm) iCLASS Card: 4.0 - 4.5” (10.2 - 11.4 cm) iCLASS Key/Tag: 1.0 - 2.0” (2.5 - 5.0 cm) MIFARE® Card (serial number only): 2-2.5" (2.5-6.4 cm)
Dimensions 3.3” x 4.8” x 0.95” (8.4 cm x 12.2 cm x 2.4 cm)
Power Supply 5 to 12 VDC. Linear supply recommended
Current Requirements 50/75 mA @ 12 VDC
Operating Temperature -40º to 150º F (-40º to 65º C)
Operating Humidity 5% to 95% relative humidity non-condensing
Transmit Frequency 125 kHz and 13.56 MHz
Cable Distance Wiegand Interface 500ft (150 m) 22 AWg
Card Compatibility
125 kHz Proximity
HID or Indala proximity cards, key fobs, and tags
AWID Credentials
EM4102 Credentials