Raspberry Pi to Arduino MKR bridge HAT — Arduino Online Shop
Raspberry Pi 3G/4G-LTE Base HAT
Power Over Ethernet (PoE) HAT for Raspberry Pi 3 B+ 4 and 802.3af PoE
Raspberry Pi Build HAT - DEV-18705 - SparkFun Electronics
Amazon.com: POE HAT (B) for Raspberry Pi 4B/3B+,Power Over Ethernet HAT with 0.91" OLED,Support 802.3af PoE Network,802.3af Power-Sourcing Equipment Required : Electronics
Pmod HAT Adapter for Raspberry Pi
Amazon.com: waveshare Power Over Ethernet (PoE) HAT for Raspberry Pi 4B/3B+, 802.3af/at PoE Network Standard, 5V USB-A&12V Header Outputs, PoE HAT Onboard Cooling Fan and MP8676 Buck Chip, Isolated : Electronics
Raspberry Pi 3G/4G-LTE Base HAT
MCC 172 - IEPE Measurement DAQ HAT for Raspberry Pi
RS232 Serial DB25 Raspberry Pi Hat for CNC – Byte 2 Bot
Raspberry Pi Sense Hat - Any Raspberry Pi With 2x20 Connector - 2738
Adafruit Perma-Proto HAT for Pi Mini Kit - No EEPROM : ID 2310 : Adafruit Industries, Unique & fun DIY electronics and kits
IO Expansion Hat for Raspberry Pi 5 / 4 / 400 / 3 - DFRobot
SparkFun Qwiic HAT for Raspberry Pi - DEV-14459 - SparkFun Electronics
Amazon.com: waveshare POE HAT (C) for Raspberry Pi 4B/3B+, Power Over Ethernet HAT, Support IEEE 802.3af/at-Compliant Network,12V and 5V Power Outputs to Use More Peripherals : Electronics
Introducing Raspberry Pi HATs - Raspberry Pi
Raspberry Pi Wireless Hat I/O Module – Widgetlords Electronics
SH-RPi (Sailor Hat for Raspberry Pi) – Hat Labs
Eight Relays 4A/120V 8-Layer Stackable HAT for Raspberry Pi
High Power Zigbee2MQTT HAT for Raspberry Pi | CC2652P Zigbee HAT for Raspberry Pi | Home Assistant CC2652P Zigbee | ELEKITSORPARTS
Amazon.com: UCTRONICS PoE HAT for Raspberry Pi 4B/3B+, Power Over Ethernet (PoE) Support 802.3af PoE Network Standard, Compatible with Pi 4B / 3B+ : Electronics
Raspberry Pi 5 gets an M.2 PCIe HAT - Meet PineBerry Pi HatDrive - CNX Software
Raspberry Pi A+/B+/Pi2/Pi3 Prototyping HAT (RPi-Proto-HAT) - Watterot
