This is an RG505, purchased new in April 2025, with GammaOS installed. I only tested the operation after installing GammaOS and haven't used it otherwise. GammaOS offers slightly better performance and longer battery life compared to the original OS. [Product Contents] Game console Manual USB cable Screen protector MicroSD card 128 GB The outer box has some stains from shipping. We will ship within 24 hours of your order. This item is also listed on other flea market sites, so your order may be canceled depending on the timing of your purchase. Please review the above information before purchasing.