SmallRig 4870 SD4.0 Memory Card Reader The SmallRig SD4.0 Memory Card Reader 4870 is engineered for fast and efficient data transfer and backup across mobile devices and computers. Supporting a wide range of memory card types—including SD, SDHC, SDXC, TF, Micro SD, Micro SDXC, and Micro SDHC—it enables simultaneous read/write access for SD and TF cards, streamlining workflows for photographers, videographers, and mobile content creators. With blazing-fast USB 4.0 transfer speeds up to 312MB/s, the SD4.0 reader can transfer 1GB of data in just 6 seconds—ideal for managing large files and high-volume backups. Its compact, lightweight design is tailored for on-the-go use and easily attaches to iPhones for quick, one-handed operation. A thoughtfully designed 90° angled connector provides a secure, stable fit while improving cable management during mobile or desktop use. Built for portability, the SD4.0 reader is easy to store and carry in your kit. Usage Notes For Android devices, keep the file manager running in the background to avoid interruptions. Transfer speed is limited by the host interface (USB 2.0 or 3.0 will restrict performance). Using SD and microSD cards simultaneously may reduce overall transfer speeds. Ensure correct memory card insertion before use. If transfer issues occur, reinsert the card and try again. Hot swapping may cause data loss—refer to the manual for proper usage steps. This device is fragile—please handle with care. Avoid contact with water and exposure to rain.
