Mark Casey Follow Writer Expertise Consumer Technology Computer Components Computer Peripherals Computer Accessories Introduction 10+ years experience writing and reviewing PC components and peripherals.Hands-on experience changing PC components. Experience Mark Casey is a former writer for Lifewire. Drawing on more than a decade of hands-on experience writing and reviewing PC components and peripherals, his 12 articles focus on various aspects of computing and technology. Lifewire and Dotdash Meredith Lifewire, a Dotdash Meredith brand, is a Top 10 technology information website, as rated by Comscore, a leading internet measurement company. We provide trusted, clear, and actionable answers to your most pressing technology questions vetted by certified experts, as well as trustworthy product recommendations so you can make the most informed purchasing decisions. Learn more about us and our editorial process.