USB to M.2 Key B Modem Adapter with Top Side SIM Card Slot


USB to Mini PCI-E Adapter with SIM Card Slot

This USB to M.2 Key B Adapter with  Top Side SIM Card Slot uses a Standard (Full Size) SIM Card, and a convenient “Click / Click” style slot.  The SIM card slot is positioned perpendicular to the adapter board, on the top of the card.

It is useful for attaching a 3G 4G LTE and 5G NGFF M.2 key B form factor (both 3042 and 3052) cellular modem cards

NOTE: The Sierra EM919x series 5G and Telit 5G cards do NOT work in this adapter. Quectel 5G modems 100% DO work in this adapter. For the Sierra EM919x/EM7690 we do have an adapter that works, HERE.

The Screw Pillar used for holding down your modem card is removable to change between 3042 (4G) and 3052 (5G) form modem modules.

We use these adapters to flash firmware onto M.2 NGFF Key B cellular modem modules.



  1. When using a SIM Card adapter (i.e., micro to standard, etc), take precaution that the SIM card fits “freely” and flat into the adapter.  In other words, you should not have to force the SIM card into the adapter.  A SIM card that is too tight, when installed in the SIM slot, can rise and cause a misalignment between the adapter pins and SIM card.  All tits/nubs on the side of the SIM card should be sanded smooth.  This is easily done with a laying a nail file/emery board/piece of sand paper flat on table top, and working the SIM card evenly across until smooth.
  2. This USB adapter will not work with the mini PCI-E modem cards (i.e., Sierra Wireless MC series cards and Quectel EC/EP series cards).  The USB to mini PCI-E adapter must be used.
  3. In order for a Windows based PC to recognize a Sierra Wireless modem card, regardless of how it is being attached, the Sierra Wireless Windows drivers must first be installed on the Windows device.  Refer to our LTE FIX IT Series tutorial


Package includes:

1 x USB to M.2 Key B adapter card (with SIM slot)

1 x SIM card adapter set

2 x hold down screws

1 x miniature phillips screw driver

NOTE: WWAN/LTE Module and SIM card is not included

Weight 1.25 oz
Dimensions 4.75 × 2.5 × 0.2 in


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Only 1 left in stock

Warranty: 30 Days