SparkFun Cryptographic Development Kit RC Servo the PCB comes with four

the PCB comes with four 2

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They are normally located with the bus master rather than the slaves

SparkFun Cryptographic Development Kit RC Servo the PCB comes with fourWith the SparkFun Cryptographic Development Kit you will get everything you need to learn the fundamentals of cryptographic authentication and how to use the ATECC508A Cryptographic Co Processor Breakout to add a soaring level of security to your projects. In this kit you will get a pair of our SparkFun ATECC508A Cryptographic Co Processor Breakouts that will allow you to easily add strong authentication security to your IoT node, edge device, or