High end refers to the CPU power. Typically this includes Core i processors (i3/i5/i7) 

ALPHA-IN-1000
IONN Alpha Compact Fanless Embedded Computer with Intel i5-8265U Processor, 8GB RAM, 256GB SSD
19,315.00 19315.0 ZAR Excl. VAT
ALPHA-IN-50007
IONN Alpha Compact Fanless Embedded Computer with Intel i7-8565U Processor, 8GB RAM, 256GB SSD
23,135.00 23135.0 ZAR Excl. VAT
ALPHA-IN12-i7-16G-512G
IONN Alpha Compact Fanless Emb PC i7-1255U, 16G RAM, 512G SSD
25,030.00 25030.0 ZAR Excl. VAT
ALPHA-IN8-i3-8G-256G-S4
IONN Alpha Compact Fanless Embedded Computer with Intel i3-8145U Processor, 8GB RAM, 256GB SSD
16,965.00 16965.0 ZAR Excl. VAT
BOXER-6646-ADP-A1
Fanless Compact Embedded Computer with 12 Gen Intel® Core™ i3 Processor
23,620.00 23620.0 ZAR Excl. VAT
DI-1100-I5
8th Generation Intel Core i5-8365UE High Performance, Compact and Modular Rugged Embedded Computer
24,635.00 24635.0 ZAR Excl. VAT
DI-1100-I7
8th Generation Intel Core i7-8665UE High Performance, Compact and Modular Rugged Embedded Computer
29,395.00 29395.0 ZAR Excl. VAT
DV-1000
9/8th Gen. Intel® Core™ Series High Performance and Essential Rugged Embedded Computer H310 Chipset
15,800.00 15800.0 ZAR Excl. VAT
DX-1100
EMB PC 8TH GEN UPTO XEON
9/8th Generation
19,225.00 19225.0 ZAR Excl. VAT
DX-1200
12th Gen. Intel® Core™ Series High Performance and Compact Rugged Embedded Computer
21,665.00 21665.0 ZAR Excl. VAT