No instruction manual included. Everything is as shown in the images. DVI display splitter that can simultaneously distribute stereo audio. (2-way split) VGA-DV2 Specifications: Maximum display resolution: 1600 x 1200 pixels (60Hz compatible) Interfaces: Input: DVI (24/29pin) female x 1, 3.5mm stereo mini-jack x 1 Output: DVI (24/29pin) female x 2, 3.5mm stereo mini-jack x 2 Split: 2-way Power consumption: 750mA Operating temperature: 0-50°C Storage temperature: -20-60°C Humidity: 0-80% (non-condensing) Material: Metal Size: W200 x D75 x H42mm Weight: 600g Included: 1.8m cable for connecting computer to splitter x 1 (DVI (24pin) male-male cable + 3.5mm stereo mini-jack male-male cable), AC adapter (DC5.3V 2.6A) x 1 Features: Splits DVI (29pin/24pin) signals from one computer to two DVI displays. Supports high resolution of 1600 x 1200 pixels. Compatible with DVI-I (29pin) and DVI-D (24pin). Supports DDC and DDC2B (port 1 only). Employs a metal case that is resistant to electromagnetic interference and noise. Cascade connection is possible (up to 3 stages). <Caution> * Display, video card, and cable used may not output video properly. This is due to the performance of the devices, compatibility issues, or the characteristics of DVI signals. In such cases, try lowering the resolution. * Video signals experience significant signal loss over cables, and the quality of the cable greatly affects the degree of degradation. * Please use high-quality DVI cables. Supported Information: Compatible computers: DOS/V (Windows-equipped) computers, Apple Mac series * Models with DVI (24/29pin) connectors. Compatible output devices: DVI (24/29pin) compatible displays and projectors