Lenovo ThinkPad S1 Yoga Convertible 2-In-1 (Black) - Intel Dual-Core i7-4600U 2.10GHz - 8GB RAM - 256GB SSD - Webcam - Win 8.1 Pro 64-bit - 12.5-inch (1920x1080) Touchscreen Lenovo Thinkpad S1 Yoga Intel Dual-Core i7-4600U 2.10GHz with Turbo Boost Technology up to 3.30GHz - 8GB - 256GB Solid State Drive 12.5" (1920x1080) Full HD LED IPS with 10-point Multitouch with digitizer pen - Intel HD Graphics 4400 Intel Dual Band Wireless-AC 7260 - Bluetooth - Webcam - Windows 8.1 Professional 64-bit (2) USB 3.0 (One Powered) - (1) Mini-HDMI - (1) VGA Dongle - (1)Ethernet dongle - (1) Microphone/Headphone Combo Jack