The GT9XX1085X600 portable is available for purchase on various online marketplaces, including Amazon, Best Buy, and Newegg. You can also check with local retailers in your area for availability.
Amazon.com: ELECROW 7 Inch Touchscreen Monitor for Raspberry Pi gt9xx1085x600 portable
Given the pattern, this almost certainly refers to a powered by a Goodix GT9xx series touch controller (often GT911, GT928, GT9271) with resolution 600p (likely 1024x600). The GT9XX1085X600 portable is available for purchase on