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Small green circuit board with USB connector and SIM card slot

CyberPowerPC SIM800C GSM/GPRS USB Development Board

SKU CH-K5SH-FQP4M

A quad-band GSM/GPRS development board with integrated USB-to-serial conversion for 850/900/1800/1900 MHz networks

  • MotherboardLaptop, Desktop
  • CPU Socket TypeP
  • CPU TypeARM Cortex
  • USB 1.1/2.02 x USB 3.0 + 2 x USB 2.0
  • USB 3.01 x USB 3.0
  • Onboard USB1 x USB 2.0
  • Quad-band GSM/GPRS 850/900/1800/1900 MHz for worldwide use
  • Integrated CH340T USB-to-serial chip enables direct PC debugging
  • Auto-starts on power without button presses
  • Supports SMS and GPRS data with low power draw
  • Accepts Micro SIM and Nano SIM via elastic slot

Quad-Band GSM/GPRS Module

The CyberPowerPC SIM800C board integrates a quad-band GSM/GPRS module with an on-board CH340T USB-to-serial converter. It targets makers and developers who need to add cellular voice, SMS or 2G data to a project without designing their own RF front-end. The self-elastic SIM slot accepts Micro and Nano cards, and the module auto-connects on power-up for rapid prototyping.

Frequency Support and Data Limits

The radio operates on 850, 900, 1800 and 1900 MHz bands for worldwide 2G coverage. GPRS data transmission is supported for applications such as mobile meter reading, while voice and SMS functions are available across all bands. The 2G-only data path means throughput is limited to GPRS-class speeds, so the board is unsuitable for broadband or real-time streaming workloads.

Power and Thermal Profile

Low power consumption allows the module to run directly from a USB 2.0 or 3.0 port without an external supply. The compact Mini-ITX form factor has no active cooling, relying on passive dissipation that remains cool during typical SMS or low-rate data sessions. Continuous high-duty GPRS transfers may raise board temperature, but no thermal throttling or fan noise occurs in normal use.

Highlights

  • Quad-band GSM/GPRS 850/900/1800/1900 MHz for worldwide use
  • Integrated CH340T USB-to-serial chip enables direct PC debugging
  • Auto-starts on power without button presses
  • Supports SMS and GPRS data with low power draw
  • Accepts Micro SIM and Nano SIM via elastic slot

Specifications

BrandCyberPowerPC
MotherboardLaptop, Desktop
CPU Socket TypeP
CPU TypeARM Cortex
USB 1.1/2.02 x USB 3.0 + 2 x USB 2.0
USB 3.01 x USB 3.0
Onboard USB1 x USB 2.0
Other ConnectorsNO
FeaturesNO, Laptop, Desktop
Form FactorMini ITX
Package ContentsNO

Questions about this item

Will the USB-to-serial chip on this board work with the USB 2.0 ports on my older laptop?

The board uses a CH340T USB-to-serial chip that plugs directly into any USB 2.0 or USB 3.0 port and installs its driver without extra hardware.

How can I verify the module has registered on the GSM network after I plug it in?

Send an AT command such as AT+CREG? from a terminal program; a response of +CREG: 0,1 or +CREG: 0,5 means the SIM800C is registered on the 850/900/1800/1900 MHz bands.

Does the package include a SIM card or an external antenna, or do I need to buy them separately?

The board has an on-board elastic slot for a Micro or Nano SIM and an integrated PCB antenna, so no separate SIM card or antenna is supplied — you provide your own SIM.

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