Antenna Cable - Universal - Aluminum Alloy USB 3.0 Hub 3 Port Adapter Dispenser with SD/TF Card Reader 21.5 inch iMac 27 Pro Ultra-thin All-in-One Computer Highlights Universal Alloy USB 3.0 Hub 3 Port Adapter Splitter with SD/TF Card Reader iMac 21.5 inch 27 Pro Ultra-thin All-in-one Computer Aluminum Alloy USB 3.0 Hub 3 Port Adapter Splitter with SD/TF Card Reader for IMAC 21.5 27 PRO Slim UniBody Computer Product is shipped based on the main image color or size of the product page. Interface Type: USB 3.0 Ports: 6 Origin: CN (Origin) Function: Drive Standard: USB 3.0 Length: 11.5cm Package: Yes Certification: CE, ROSH Plug Standard: None Decourse: USB 3.0 Combo Color: Sliver Input: USB 3.0 Output: 3 USB 3.0 and SD ports, MIRCO SD card reader Material: aluminum Compatibility: SDXC, SDHC, SD, Micro SDXC, Micro SDHC, Micro SD Function: USB 3.0 hub with SD / TF card reader