Thank you for selecting Aerospace Aviation360 as your go-to distributor of part number N54-XCB1-1GUAA found under Interface Unit Data Transfer by Sun Microsystems Inc. The National Stock Number assigned to this part is 7025015606558, and the Federal Supply Class is 7025 Adp Input Output And Storage Devices. Our website is owned and operated by ASAP Semiconductor, a leading distributor of aviation and aerospace part numbers like N54-XCB1-1GUAA.