Starting today, you can use the Amazon WorkSpaces macOS client application with Common Access Card (CAC) and Personal Identity Verification (PIV) smart cards. Smart card support is available on WorkSpaces using the WorkSpaces Streaming Protocol (WSP). WSP is a cloud-native streaming protocol that enables a consistent user experience when your end users are accessing their WorkSpaces across global distances and unreliable networks. To learn more, see Amazon WorkSpaces Streaming Protocol.
Source:: Amazon AWS