No. of slots: 2 Accessories included: - HDD i-tec USB 3.0 SATA HDD docking station- USB 3.0 cable (80 cm)- Power Supply- User's Guide Dimensions: 153 x 111 x 62 mm Weight: 390 Other features: - 2x SATA port for 2.5 "/3.5" HDD or SSD with SATA I / II / III up to 6TB- USB 3.0 interface for fast data transfer (up to 5 Gb / s), backward compatibility with USB 2.0- LED indicator, Plug & Play function, automatic driver installation, on / off switch- 1x power supply - external power supply (input: AC 100-230V, 50-60Hz, max. 1.2A, output: DC 12V / 3A)