Raspberry Pi A+/B+/Pi2/Pi3 Prototyping HAT (RPi-Proto-HAT) - Watterot
Home Automation 8-Layer Stackable HAT for Raspberry Pi – Sequent Microsystems
Amazon.com: RPi GPIO Terminal Block Breakout Board HAT, for Raspberry Pi : Electronics
Dual-Mode Bluetooth Expansion Module HAT for RPI Raspberry Pi PICO RP2040 Board | eBay
4G LTE Hat For Raspberry Pi | Makerfabs
The Top 10 HATs and pHATs for Raspberry Pi
Raspberry Pi HAT Brass Stacking Standoff Kit - Spell Foundry
Raspberry Pi PoE+ HAT - PiShop.us
Best Raspberry Pi HATs 2023: Expansion Boards for Every Project | Tom's Hardware
Rpi HiFi DAC Hat – Raspberry Pi|Industrial Camera|USB TO CAN FD
Power Over Ethernet (PoE) HAT for Raspberry Pi 3 B+ 4 and 802.3af PoE
Introducing Raspberry Pi HATs - Raspberry Pi
pi.ka – FPAA rPi HAT - Okika Technologies
Raspberry Pi Build HAT - DEV-18705 - SparkFun Electronics
Power over Internet(POE) Hat for Raspberry Pi 4/3B+
Cluster HAT Kit (includes 4 x Raspberry Pi Zero W)
OAK-FFC RPi Hat – Luxonis
Sailor Hat for Raspberry Pi (SH-RPi) – Hat Labs
IEPE Measurement DAQ HAT for Raspberry Pi from Measurement Computing
Rpi HiFi AMP Hat - PiShop.us
Connect concentrator modules to Raspberry Pi using the RAK2287 Pi HAT – RAKwireless Store
$49.80 - Gameboy Style Gamepad Hat for Raspberry Pi - Tinkersphere
Top 20 Raspberry Pi HATs & Shields You Should Try - Latest Open Tech From Seeed
RPI Level Shifter Hat from chris.design on Tindie
RS485 CAN HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W/WH,Allow Long-Distance Communication via RS485/CAN Function Onboard CAN Controller MCP2515 via SPI Interface Transceiver SN65HVD230
Grove Base Hat for Raspberry Pi | Seeed Studio Wiki
Rpi HiFi AMP Hat – Raspberry Pi|Industrial Camera|USB TO CAN FD
Raspberry Pi Sense HAT - any Raspberry Pi with 2x20 Connector : ID 2738 : $30.00 : Adafruit Industries, Unique & fun DIY electronics and kits