Amazon.com: 4-CH Current/Voltage/Power Monitor HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/W, I2C/SMBus Interface Onboard 0.1Ω 1％ Sampling Resistor Measure Bi-Directional Current up to 3.2A Embed 12-bit ADC : Electronics
Amazon.com: RPi GPIO Terminal Block Breakout Board HAT, for Raspberry Pi : Electronics
IO Expansion Hat for Raspberry Pi 5 / 4 / 400 / 3 - DFRobot
Waveshare Mini Base Board (A) for Raspberry Pi Compute Module 4 (CM4-I – Hat Labs
4 Port USB HUB HAT for Raspberry Pi Zero
Raspberry Pi 4 PoE HAT 802.3af Power Over Ethernet Expansion Board with Cooling Fan Temperature OLED for Raspberry Pi 3B+ 4B - AliExpress
PiKVM v3.3 HAT for Raspberry Pi 4 - PiShop.us
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
Raspberry Pi PoE+ HAT : ID 5058 : Adafruit Industries, Unique & fun DIY electronics and kits
KKSB Raspberry Pi 4 Case - Aluminium and Steel - Space for Raspberry P — KKSB Cases
Power Over Ethernet (PoE) HAT for Raspberry Pi 4 and 3B+ and 802.3at P
Amazon.com: 4-Port Raspberry Pi USB HUB HAT for Raspberry Pi 4B/3B+/3B/2B/B+/A+/Zero/Zero W, 4 USB Ports Compatible with USB2.0/1.1 Onboard USB to UART Onboard Multi Indicators : Electronics
Cluster HAT Kit (includes 4 x Raspberry Pi Zero W)
JTAG Hat – Blinkinlabs
UCTRONICS U6110 PoE HAT for Raspberry Pi 4, 32,90 € - Welectron
Dac Hat Raspberry Pi | Raspberry Pi 4 Dac Hat | Raspberry Pi Hat Power | Pi Bluetooth Hat - Demo Board Accessories - Aliexpress
Raspberry Pi 4 Fan Case » By C4Labs » Pre-Order now open!
Amazon.com: GeeekPi Fan Hat for Raspberry Pi 4 Model B, PWM Fan GPIO Expansion Board with 0.91inch OLED Display for Raspberry Pi 4B/3B+/3B/2B : Electronics
SH-RPi (Sailor Hat for Raspberry Pi) – Hat Labs
RGB Cooling HAT with cooling fan RGB Light OLED for Raspberry Pi
Amazon.com: Geekworm for Raspberry Pi 4 NVME HAT, X876 V1.1 NVME M.2 SSD Storage Expansion Board UASP Supported Compatible with Raspberry Pi 4 Model B Only Support Key-M 2280 SSD : Electronics
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
USB 3.2 Gen1 HUB HAT For Raspberry Pi, 4x USB 3.2 Gen1 Ports, Driver-Free
Raspberry Pi PoE HAT
