POE HAT (B) for Raspberry Pi 4B/3B+,Power Over Ethernet HAT,Support 802.3af PoE Network,802.3af 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:802.3af PoE. OLED DRIVER:SSD1306. DIMENSIONS:56.5 × 65mm . OLED DISPLAY COLOR:white.