M.2 Key B to Mini PCI-E Riser Card with Dual Nano SIM Slot, M2 NGFF to Mini PCIE Adapter for 3G 4G 5G WWAN Modem Module PC

This M.2 NGFF Key B to Mini PCI-E riser adapter is specially designed for converting M.2 WWAN modem modules to standard Mini PCI-E interface, equipped with dual independent Nano SIM card slots to realize dual SIM network switching, backup internet and multi-carrier communication for industrial PCs, desktops and embedded devices.

It fully supports mainstream 3G, 4G LTE and 5G NR M.2 Key B modules with 3042 / 3052 size, compatible with both full-size and half-size Mini PCI-E slots on motherboards. Adopting precise PCB wiring and gold-plated spring contacts, the adapter ensures low signal attenuation and stable data transmission for long-hour cellular online work. As a passive expansion board, it requires no external power source or complicated firmware setup; users only need to install the driver matched with their cellular module.

Widely applied in industrial control hosts, network gateways, monitoring equipment and DIY desktop cellular networking projects, solving the interface mismatch trouble between M.2 WWAN modules and legacy Mini PCI-E slots perfectly. Each adapter passes strict factory signal testing to deliver reliable dual-SIM cellular connectivity.