Collection: Under $50
Calm, useful technology — all under $50. Curated picks that deliver real value without the noise.
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HLK-LD2410B Human Presence Radar Module Bluetooth Test Kit 24GHz LD2410 Smart Human Detection Sensor Module Board with Bluetooth Test Kit
Regular price $23.99 USDRegular priceSale price $23.99 USD -
Air Quality Monitor Indoor: Temperature Humidity Sensor with CO2, TVOC, HCHO, Professional Portable Detector, 5-in-1 Air Quality Meter for Home Office School Hotel
Regular price $28.49 USDRegular priceSale price $28.49 USD -
MOES ZigBee & Bluetooth & Mesh Gateway, Tuya Wireless Smart Home Bridge Hub, Only Support Tuya Smart Device Work with Smart Life/MOES App
Regular price $41.99 USDRegular priceSale price $41.99 USD -
2 PCS LD2410C Sensor HLK-LD2410 Module Human Presence Radar LD2410 Radar Sensor Non Contact 24GHz ISM Band Serial Port IO Level Output
Regular price $25.49 USDRegular priceSale price $25.49 USD -
3-Pack Monitor Connector Alignment Clips with Adhesive, Multi Monitor Alignment Brackets for Dual & Triple Monitor Setups, Tool-Free Monitor Connection
Regular price $32.70 USDRegular priceSale price $32.70 USD -
BW 4.3 Inch TFT LCD Screen Adjustable Car Monitor for Vehicle Backup Cameras Security CCTV Camera and Car DVR
Regular price $28.44 USDRegular priceSale price $28.44 USD -
HiLetgo ILI9341 2.8" SPI TFT LCD Display Touch Panel 240X320 with PCB 5V/3.3V STM32
Regular price $24.59 USDRegular priceSale price $24.59 USD -
for Raspberry Pi 4 TFT 3.5 inch Touch Screen with Case, Mini Cooling Fan and Heatsink, 480x320 Resolution 60fps Monitor LCD Display
Regular price $32.09 USDRegular priceSale price $32.09 USD -
EZ-USB FX2LP CY7C68013A USB Core Board Development Board USB Logic Analyzer with Serial Interface Module Mini USB
Regular price $15.86 USDRegular priceSale price $15.86 USD -
EZ-USB FX2LP CY7C68013A USB Core Board Development Board USB Logic Analyzer with I2C Serial SPI Interface Module Mini USB
Regular price $16.02 USDRegular priceSale price $16.02 USD -
USB Logic 24MHz 8 Channel 24M/Seconds Logic Analyzer Debugger for ARM FPGA Logic Analyzer Logic 24M 8CH
Regular price $15.92 USDRegular priceSale price $15.92 USD -
USB Logic Analyzer, Logic Analyzer USB Logic Analyzer Device with Cables 5MHz 24M 8 Channel UART I2C SPI Debug, Logic Analyzers
Regular price $26.19 USDRegular priceSale price $26.19 USD -
GeeekPi SATA Storage for Raspberry Pi 4, 2.5 inch SATA HDD/SSD Expansion Board X825 V2.0 USB3.0 Shield for Raspberry Pi 4 Model B ( Only for Raspberry Pi 4B )
Regular price $44.24 USDRegular priceSale price $44.24 USD -
Geekworm X1100 2.5" SATA HDD/SSD NAS Expansion Board for Raspberry Pi 5
Regular price $45.00 USDRegular priceSale price $45.00 USD -
Marvell 88SE9215 PCIe SATA Card for 4K Video Editing, 4-Port 6Gbps Hot-Swap, Heatsink, Windows/Linux/macOS/NAS (LP Bracket+Cable)
Regular price $37.49 USDRegular priceSale price $37.49 USD -
chenyang M.2 M‑Key Splitter Expansion Card, PCIe M-Key to NVMe M-Key SSD + NGFF E-Key Wireless Card Adapter with ASM1182e Chipset for 2230mm
Regular price $38.82 USDRegular priceSale price $38.82 USD