Uefi General Udisk 5.00 Partition 1 Work

sudo fdisk -l /dev/sdX

"UDisk" is a common firmware name for USB flash drives. The "5.00" typically refers to the firmware version of the USB controller inside the stick. uefi general udisk 5.00 partition 1

This means your motherboard detects a bootable UEFI partition on the USB drive. Selecting it will launch whatever OS or tool is on that drive. sudo fdisk -l /dev/sdX "UDisk" is a common