I currently run SambaPOS v4.1.82 v5.1.60 on a ZOTAC ZBOX ID91. This mini-pc has:
Intel Core i3-4130T 2.9GHz
4GB 8GB DDR3 RAM
500GB HDD (5400 RPM) 256GB SSD (Crucial)
Dell Touch (USB) monitor
Epson TM-T88V thermal printer (USB)
Windows 8.1 Core/Basic 10 Home 64-bit
SQL Server Express 2014 2016 64-bit
WinAmp for music
IIS 8 hosts a few low-traffic PHP websites including a SambaPOS Inventory Control System
EDIT: Also now hosts GQLmodules
Connected via wired ethernet to Asus RT-AC66U router, separated into 3 WiFi Networks
This “server” is the only Terminal, and does everything. I have no remote terminals. I have a single Terminal running Kitchen Display via GQLmodules. Everything runs smooth. Fast.