JTAG Hat – Blinkinlabs
I2C HAT for Raspberry Pi 2 & 3 - RobotShop
Amazon.com: Official Raspberry Pi Power Over Ethernet (PoE) HAT for Raspberry Pi 3 B+ and 802.3af PoE Network : Electronics
Sequent Microsystems Smart Fan HAT for Raspberry Pi | Elektor
Raspberry Pi 4B/3B+/3B X930 HiFi DAC HAT Expansion Board – Geekworm
USB 3.2 Gen1 And Gigabit Ethernet HUB HAT for Raspberry Pi, 3x USB, 1x Gigabit ETH, Driver-Free - PiShop.us
UCTRONICS PoE HAT 5V 3A for Raspberry Pi 4B, 3B+ and 802.3af/at PoE Ne – Vilros.com
PoE HAT for Raspberry Pi 3 B+ | Satistronics
Raspberry Pi Build HAT - LEGO Robotics Add-On For Raspberry Pi : ID 5287 : $25.00 : Adafruit Industries, Unique & fun DIY electronics and kits
Cluster HAT v2.5
Amazon.com: Raspberry Pi 3 Prototyping Board Proto Breadboard HAT by MakerSpot Soldered with Female Pin Connector PCB for Raspberry Pi 2 Pi 3 A+ B+ (1 Pack) : Electronics
SparkFun Qwiic / STEMMA QT HAT for Raspberry Pi : ID 4688 : $7.95 : Adafruit Industries, Unique & fun DIY electronics and kits
RPI-HAT-POE+ - Raspberry-pi - Add-on Board, PoE HAT, Raspberry Pi 3 Model B+
Introducing Raspberry Pi HATs - Raspberry Pi
Power Over Ethernet (PoE) HAT for Raspberry Pi 3 B+ 4 and 802.3af PoE
Raspberry Pi PoE+ HAT
Raspberry Pi 3 Case for dAISy HAT – Wegmatt
SparkFun Qwiic HAT for Raspberry Pi - DEV-14459 - SparkFun Electronics
DVMPi for Raspberry Pi 3 B+ and DVMega UHF or VHF/UHF HATs » C4Labs
Raspberry Pi Sense HAT - Adafruit | Mouser
SB Components LoRa HAT for Raspberry Pi (EU868) | Elektor
USB 3.2 Gen1 HUB HAT For Raspberry Pi, 4x USB 3.2 Gen1 Ports, Driver-Free
Zebra Unicorn HAT Case - Raspberry Pi 3 B+ and Pimoroni Unicorn HAT HD » C4Labs
264x176p 2.7-inch 3-Color E-Ink Display HAT (B) for Raspberry Pi and J — KKSB Cases
