lshw - List hardware.
Show detailed information about the hardware:
lwhd
Show brief information about the hardware:
lwhd -short
Show SCSI, USB, IDE and PCI device info:
lshw -businfo
Show information in HTML format:
lshw -html
Show information in XML format:
lshw -xml
Show information about the hardware without personal information, like serial numbers:
lshw -sanitize