Brand MAIWO Model K307 Quantity 1 Color Black Material Plastic & Aluminum Supports HDD Type 2.5"/3.5" Internal Slot Interface SATA Slots Number 4 External Slot Interface 1 x USB 2.0 / 2 x USB host Supports Max. HDD Capacity 3TB Power Supply Input: 100-240v 50/60Hz 1.2A Max. output:12V 5A Supports System Windows 2000/2003/XP/Vista/7/Mac os10.3 Features Support 4PCS of 2.5''/3.5'' SATA HDD&SSD; Support plug and play easy to insert and pull out hard disk; Support each HDD max up to 3TB; No need for PC just press the button then it can copy full disk information from 1:1 or 1:2 HDD it can't support 1:3HDD copy the fourth HDD only can be used for storage when connect to PC; 25%-50%-75%-100% 4 LEDs to show clone progress. 12V 5A power adapter support HDD total up to 12TB. External interface: USB3.0 & 2x USB HOST. Keywords Duplicator HDD Docking Packing List 1x HDD Docking 1x USB2.0 cable 1x Power Adapter 1x Power Cord 1x User Manual 4x 2.5'' HDD bracket