E means that the product is rated in its category in terms of energy efficiency. The Energy Labeling system is based on EU Regulation 2017/1369/EU. E Viewsonic VS18464, 24", 1920 x 1080 pixels Viewsonic VS18464. Display diagonal: 24", Display resolution: 1920 x 1080 pixels, Native aspect ratio: 16:9 https://monitornerds.com/viewsonic-vg2440v-review/ on AmazonThe ViewSonic VG2440V is a simple yet sophisticated solution for an inexpensive home or office workstation. It features a crisp and clear IPS panel primarily, but it also comes with a webcam and an excellent price point. Let's check it out t... Functional Design, Decent Webcam with Adjustability, Great Default Accuracy, No USB-C, Pricey for Non-USB-C Monitor, Limited Gamut We're a fan of functional solutions like the ViewSonic VG2440V which helps save your money and space by offering more with the display. You get excellent build quality and conferencing functionality with the monitor versus buying all involved peripherals...