This is a used Dell DW5804 4G LTE/WWAN mobile broadband card, part number 01YH12, model E371. It's been tested and is fully functional – perfect for adding cellular connectivity to compatible Dell laptops or tablets. The card uses a Mini PCI-E internal interface (NGFF form factor) and connects via PCIe. It supports 3G and 4G LTE networks with a maximum data rate of 100 Mbps, so you can get online almost anywhere. External interface is wireless, of course. It shows some cosmetic wear from previous use, but it works as intended – great for a budget upgrade or replacement. No UPC, but the part numbers ensure compatibility. Ideal for business laptops, field work, or travelers who need reliable mobile internet. Just pop it into the WWAN slot, activate with a SIM card, and you're connected. A cost-effective way to add built-in 4G without buying a new machine.