IESP-5121-XXXXU is an industrial fanless panel PC that features a 21.5" 1920*1080 HD TFT LCD screen with IP65 rated front panel protection and a resistive 5-wire touchscreen. It operates using an onboard Intel 5th/6th/8th generation Core i3/i5/i7 processor (U series, 15W) and supports VGA & HDMI multi-display outputs. The design is ultra-slim and fanless, making it ideal for use in various industrial applications. The device comes in a metal chassis that ensures durability while offering a sleek form factor. In terms of connectivity options, the product offers rich I/Os including 1RJ45 GbE LAN port, 4RS232 COM ports (6 optional), 4USB ports (2USB 2.0 & 2USB 3.0), 1HDMI, and 1*VGA video output. It also has a standard 3.5mm interface supporting audio line-out and MIC-IN. IESP-5121-XXXXU industrial panel PC can operate on a 12V DC power input via the provided 2PIN Phoenix Terminal DC IN power interface. Additionally, the product provides deep custom design services to customers based on their specific requirements.  This industrial panel PC is ideal for various industrial applications due to its robust design, rich connectivity options, customizable services, and reliable performance.IESP-5121-5005U-W: 5th Gen. Core i3-5005U Processor 3M Cache, 2.00 GHz IESP-5121-5200U-W: 5th Gen. Core i5-5200U Processor 3M Cache, up to 2.70 GHz IESP-5121-5500U-W: 5th Gen. Core i7-5500U Processor 4M Cache, up to 3.00 GHz IESP-5121-6100U-W: 6th Gen. Core i3-6100U Processor 3M Cache, 2.30 GHz IESP-5121-6200U-W: 6th Gen. Core i5-6200U Processor 3M Cache, up to 2.80 GHz IESP-5121-6500U-W: 6th Gen. Core i7-6500U Processor 4M Cache, up to 3.10 GHz IESP-5121-8145U-W: 8th Gen. Core i3-8145U Processor 4M Cache, up to 3.90 GHz IESP-5121-8265U-W: 8th Gen. Core i5-8265U Processor 6M Cache, up to 3.90 GHz IESP-5121-8550U-W: 8th Gen. Core i7-8550U Processor 8M Cache, up to 4.00 GHz