I have a serial number for the Asus ROG Swift PG278Q computer monitor.
It is a 27 inch monitor, 2560 x 1440 (2k), with adjustable 144Hz refresh rate, 1ms response time and Nvidia GSYNC technology.
Amazon prices it at $698.00 new, with Newegg pricing it at $949.99 new.
PayPal only, willing to do middleman.
Refer to my contact info if you're interested.