Interface: HDMI port, Headset port, SD Card slot, USB port Supported media (Optional): Supported cards: SD card, SDHC card, SDXC card , Speed: Class 2, 10, UHS I Speed Class 1 3. Full HD To be recorded with the highest image quality and high image quality, it must be Class 6 or higher. Storage with capacity exceeding 2 TB is recognized as 2 TB. * If storage with capacity exceeding 2 TB is connected, it will be formatted. Maximum capacity: 128 GB Supported USB storage: USB hard disk, USB memory. If NTFS format storage is connected, it will be formatted in exFAT format. Aspect ratio: 16:9 Recording format: MPEG4 AVC/H.264 (MP4) Resolution: 1920 x 1080, 1280 x 720, 720 x 480 Bit rate: 36/28 Mbps, 16 Mbps, 12 Mbps, 4 Mbps