$49.80 - Gameboy Style Gamepad Hat for Raspberry Pi - Tinkersphere
Raspberry Pi A+/B+/Pi2/Pi3 Prototyping HAT mit EEPROM (RPi-Proto-HAT)
SparkFun Qwiic / STEMMA QT HAT for Raspberry Pi : ID 4688 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
Raspberry Pi Sense HAT for the Pi 3/2/B+/A+ - Adafruit | Mouser
RAK7243 Pilot Gateway Pro 4G LoRa Gateway for PoC Raspberry Pi 3B+, RA – Pi Supply
SparkFun Qwiic HAT for Raspberry Pi - DEV-14459 - SparkFun Electronics
Raspberry Pi Sense HAT - Elektor
Announcing the Raspberry Pi PoE+ HAT - Raspberry Pi
Raspberry Pi HATs, pHATS & GPIO | The Pi Hut
Cluster HAT v2.5 – Pimoroni
The Top 10 HATs and pHATs for Raspberry Pi
Thermocouple Measurement HAT for Raspberry Pi® from Measurement Computing
$13.90 - Raspberry Pi Lipo Battery Power Hat with USB Hub - Tinkersphere
CaribouLite RPi HAT | Crowd Supply
Raspberry Pi RTC + Power HAT - BC Robotics
Adafruit 16-Channel PWM / Servo HAT for Raspberry Pi - Mini Kit : ID 2327 : $17.50 : Adafruit Industries, Unique & fun DIY electronics and kits
Raspberry Pi 3G/4G-LTE Base HAT
Stepper Motor HAT for Raspberry Pi
The Top 10 HATs and pHATs for Raspberry Pi
LoRaWAN Gateway with RAK2245 Pi HAT and Raspberry Pi 4 - Hackster.io
Raspberry Pi Fan HAT - Active Cooling for the Pi 4 - BC Robotics
