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Small green circuit board with gold M.2 slot and two SIM trays, USB-A plug at one end

SMUGDESK

SMUGDESK M.2 Key B to USB3.0 Adapter with Dual Nano SIM Slot 3042/3052

SKU CH-G4J2-GKM02

Converts M.2 Key B 3042/3052 WWAN modules to USB 3.0 with dual Nano SIM slots for carrier switching

  • Connect two carriers at once with dual Nano SIM slots
  • Test 5G modules at USB 3.0 speeds without extra power
  • Monitor link status via built-in power indicator LED
  • Works with Windows 11, 10, 8, 7, macOS and Linux driver-free
  • Fits 3042 and 3052 Key B WWAN cards from Quectel, Huawei, Sierra, MeiG

M.2 Key B to USB 3.0 Adapter

This SMUGDESK adapter converts M.2 Key B 3042/3052 WWAN modules into a USB 3.0 peripheral for desktop or laptop use. It targets engineers and developers who need to test 3G, 4G or 5G cellular modems outside an embedded chassis. The board draws power directly from the USB port so no separate supply is required. Compatible systems include Windows 11, 10, 8, 7, macOS and mainstream Linux distributions.

Dual Nano SIM Slots with Hot Swap

Two independent Nano SIM sockets let you switch between carriers without removing the module from the adapter. Hot-swap support means you can change SIMs while the device remains powered, useful for signal comparison or redundant network backup. The adapter itself is driver-free; only the cellular module requires its own driver installation. This arrangement speeds up field testing and multi-operator validation workflows.

Gold-Plated Slot and Status LED

A gold-plated M.2 connector resists oxidation and dropout during long-term industrial operation. A built-in power indicator LED shows real-time working status at a glance. The standard USB 3.0 Type-A plug fits common host ports without cables or brackets. The compact PCB suits bench debugging, DIY gateway builds and mobile network test setups where space is limited.

How it compares

Measured against everything we stock in USB Adapter Cables & Dongles, at today’s prices. Recalculated every night.

Price $28.99
Pricier than about 86% of the 1,430 comparable items (median $14.99).

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Specifications

No published specifications for this item yet.

Questions about this item

Will the dual Nano SIM slots need replacement after repeated hot-swaps?

The dual Nano SIM slots are built for hot-swap operation and carrier switching without frequent card removal, designed for long-term continuous use.

What limits sustained 5G data throughput on this adapter?

The USB 3.0 Type-A interface provides the high-speed data bandwidth ceiling for 5G high-rate cellular data transmission.

Does the adapter get hot or draw extra power when running all day?

It is powered directly from the USB port with no external supply needed and includes a power indicator LED for status monitoring during continuous operation.

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