PI-16ADC - Alchemy Power - Development Board, ADC HAT For Raspberry Pi A+/B+/Pi-2/Pi-3/Pi-4, 16-Channel
Waveshare Raspberry PI POE Hat for 3B+ and Pi 4 - Probotronix
The 10 best Raspberry Pi HATs — The MagPi magazine
Raspberry Pi 4 Fan Case » By C4Labs » Pre-Order now open!
Pimoroni Automation HAT for Raspberry Pi : ID 3289 : $29.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Top 20 Raspberry Pi HATs & Shields You Should Try - Latest Open Tech From Seeed
SparkFun Qwiic HAT for Raspberry Pi - DEV-14459 - SparkFun Electronics
Amazon.com: Multicomp for Use with:Raspberry Pi B+, Raspberry Pi 2, Raspberry Pi 3 and Hat Pcbs - CBPIHAT-BLK : Electronics
Grove Base Hat for Raspberry Pi - Seeed Wiki
IO Expansion HAT for Raspberry Pi 4B/3B+ - DFRobot
SparkFun Qwiic / STEMMA QT HAT for Raspberry Pi : ID 4688 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Top 20 Raspberry Pi HATs & Shields You Should Try - Latest Open Tech From Seeed
Dual Isolated CAN FD HAT for Raspberry Pi
How to set up the Pi Cap with your Raspberry Pi – Bare Conductive
Get Started with Super SIM, the Raspberry Pi 4 and the Sixfab Base Hat | Twilio
$49.80 - Gameboy Style Gamepad Hat for Raspberry Pi - Tinkersphere
DVMPi for Raspberry Pi 3 B+ and DVMega UHF or VHF/UHF HATs » C4Labs
Raspberry Pi HAT Brass Stacking Standoff Kit - Spell Foundry
Raspberry Pi PoE+ HAT
/i/65915/products/2018-07-30T23%3A28%3A46.356Z-IMG_20180730_191023795_HDR.jpg?1606306133 "12-Bit/8-Channel ADC HAT for Raspberry Pi from BurgessWorld Custom Electronics on Tindie")
12-Bit/8-Channel ADC HAT for Raspberry Pi from BurgessWorld Custom Electronics on Tindie
Pi Cap
Raspberry Pi Build HAT - DEV-18705 - SparkFun Electronics
