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 structure for stable card reading, utilizing patented technology. Compact and lightweight design. The MSR90 uses a USB emulation keyboard interface, requiring no additional drivers or software, and is compatible with Windows, Word, Excel, or any application supporting keyboard input. Hand-swipe operated magnetic card reader with USB interface, equipped with a high-integration magnetic card decoding chip. Color: Black. Material: Metal. Package Contents: 1 x Card Reader (other items not included). Note: Slight color variations may occur due to lighting and display differences. Measurement error allowed: +/- 1-3 cm.