Low power consumption and strong interference resistance. Bi-directional card reading with intelligent indicator lights to confirm successful data reading. Features an elegant magnetic installation design for stable card reading, incorporating patented technology. Compact and lightweight design. The MSR90 uses a USB emulation keyboard interface, requiring no additional drivers or software, and is compatible with any system that supports keyboard input, including Word, Excel, and other keyboard-based applications. Hand-swipe operated magnetic card reader with USB interface, equipped with a high-integrated magnetic card decoding chip. Color: Black. Material: Metal. Package Contents: 1 x Card Reader (other items not included). Note: Due to lighting and display differences, the actual color may vary slightly from the image. Measurement error allowance: +/- 1-3 cm.