ITEM NAME:Micro-SD TF CARD TF card reader module for D1 mini module Expansion board L Q4O1 Micro-SD TF CARD TF card reader module for D1 mini module Expansion board L Q4O1 matching D1 MINI use Arduino compatible, use Arduino IDE for programming 11XI / O pin 1XADC pin (input 0-3.3V) Support OTA online Size: 2.8*2.6*0.35cm Color: blue Material:?Metal Package Contents: 1 x TF card reader module Only the above package content, other products are not included. Note: Light shooting and different displays may cause the color of the item in the picture a little different from the real thing. The measurement allowed error is +/- 1-3cm.