Raspberry Pi shortage
Due to the increased rarity of finding Raspberry Pis and the increased price some machines will have the Raspberry Pi replaced by a Linux system with equal or greater specs. The Linux systems used have a more powerful processor and a faster GPU clock.
This is a temporary change due to the shortage of raspberry Pis. In the future when the raspberry pi returns to normal stock any customer that requests can make a 1 for 1 exchange of the Linux system for a Raspberry Pi.
Thank you for your understanding!!!-Matt