POE HAT (B) for Raspberry Pi 4B/3B+, Power Over Ethernet HAT, Support 802.3 af PoE Network, 802.3 af Power-Sourcing Equipment Required^^Integrates PCF8574 IO expander for I2C bus, providing pin P0 for directly fan control, and more spare IO pins^^ 0.91" OLED, for monitoring processor temperature, IP address, and fan status in real-time; Onboard cooling fan, allows auto running on powerup OR programmable control, configured by switch^^POE
POWER INPUT: 37V ~ 57V DC in.
OLED SIZE: 0.91".
POE POWER OUTPUT: 5V 2.5A DC out.
^^OLED PIXELS: 128×32.
NETWORK STANDARD: 802.3 af PoE.
OLED DRIVER: SSD1306.
DIMENSIONS: 56.5 × 65mm.
OLED DISPLAY COLOR: white.