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HID 921NHRNEK0004M Access Control Card Reader

Temporarily out of stock; available to order
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We want to make sure you are completely satisfied with your purchase. Customers must return their product within 30 days of shipment to receive a full credit less a 15% restocking fee. Returns must be presented in new condition with all of the original packaging.
Auto-tuning feature automatically adjusts the reader for optimal read range performance on any mounting surface.

Using 13.56 MHz contactless smart card technology, the iCLASS RK40 6130 provides a powerful solution. Combine a contactless card presentation with a personal identification number (PIN) to support dual authentication of identity or configure the panel for single-factor authentication, using only a card or a PIN. The PIN can be verified either at the access control panel or locally by the keypad reader. When verified locally, the PIN must be programmed into the iCLASS card. Featuring crisp architectural styling, the keypad reader has an elegantly curved faceplate. The 12-position weatherproof keypad uses discrete switches to provide positive tactile response, optionally reinforced by an audible tone. The keypad also features a waterproof silicone rubber boot, vandal-resistant metal keycaps, and backlit numbering.

General Information

  • Product Type: Smart Card Reader
  • Product Series: RK40
  • Brand Name: HID
  • Manufacturer: HID Global Corporation
  • Product Model: RK40-H
  • Product Name: pivCLASS RK40-H Smart Card Reader
  • Product Line: pivCLASS

Technical Information

  • Connectivity Technology: Cable
  • Media Supported: Smart Card
  • Operating Range: 2"

Physical Characteristics

  • Height: 4.8"
  • Width: 3.3"
  • Depth: 1.1"
  • Color: Black


  • Interfaces: RS-485

Full specifications (PDF)


The HID 921NHRNEK0004M is also known as HID-921NHRNEK0004M .