This compact SPI-interface expansion board enables easy addition of Micro SD/TF card storage to any 4.5–5.5 V Arduino project. A spring-loaded (“push-pop”) mini SD card slot and clearly silk-screened SPI pins mean plug-and-play integration without soldering or jumper wiring. Ideal for data logging, audio playback, IoT logging and portable file storage.

Key Features

• Wide Voltage Range: Operates from 4.5 V to 5.5 V, fully compatible with most Arduino boards.
• Spring-Loaded Slot: Onboard “pop-up” mini SD/TF card connector for quick card insertion and removal.
• Pre-Mapped SPI Pins: MOSI, MISO, SCK, CS, VCC and GND pins are already labelled and grouped for straightforward wiring.
• Compact Design: Just 17.9 × 17.9 mm footprint saves space on crowded prototyping boards.
• ROM-Grade Reliability: Gold-plated spring contacts ensure stable connection and long life.

Specifications

• Interface: SPI
• Supported Cards: Micro SD/TF
• Operating Voltage: 4.5 – 5.5 V DC
• Board Dimensions: 17.9 mm × 17.9 mm
• Pin Pitch: 2.54 mm
• Mounting Hole Diameter: 3.2 mm