What type of device is described by a PCIe adapter card containing a crypto-processor?

A PCIe adapter card containing a crypto-processor is indicative of a hardware security module (HSM). This type of device specializes in managing digital keys and providing cryptographic processing. An HSM is designed to enhance security within an environment by ensuring that sensitive data is securely stored and that cryptographic operations are securely performed.

The presence of a crypto-processor on the PCIe adapter signifies that the device is capable of performing encryption, decryption, and other cryptographic functions off the host system. This offloading is crucial for maintaining the security of sensitive operations while allowing the primary system to perform other tasks without the added load of cryptographic processing.

In contrast, other options such as a network switch, virtual server, and access point do not specifically focus on cryptographic functions or the management of cryptographic keys. A network switch primarily manages data traffic over networks, a virtual server runs applications in a virtualized environment, and an access point connects wireless devices to a wired network. None of these functions align with the specialized role of a hardware security module in regards to cryptography and secure key management.