What are the storage and memory specs of this desktop PC?

It comes with 16GB DDR5 memory and a 1TB NVMe M.2 SSD.

Does this Thermaltake desktop PC come with a monitor included?

No. The specifications list the monitor as not included, and the display section says there is no screen.

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Thermaltake Desktop PC LCGS View V27S-B850-96X-LCS AMD Ryzen 5 9600X 16GB DDR5 1TB NVMe SSD AMD Radeon RX 9060 XT Windows 11