Highpower HC Clamshell Proximity Card 125Khz Electric Strike Voltage Regulator DK4-3 is the 4k version

DK4-3 is the 4k version

Factory tested to over 2 million cycles of operation

This fob works well with medium to large range readers

The passive RFID insert is not available for this model

Assembled in USA with foreign components

Highpower HC Clamshell Proximity Card 125Khz Electric Strike Voltage Regulator DK4-3 is the 4k versionThe Highpower Select Series of 125Khz proximity cards are competitive and can be ordered in a wide variety of compatible protocols. When ordering these cards, you need to specify a compatible format that works with the card reader you are using. The HC part number is a standard clamshell type card. Specify the card format, facility code and ID card number ranges when ordering. Larger pack sizes provides larger discount per card. Specify facility code,