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

BOXER-6646-ADP-A3
Fanless Compact Embedded Computer with 12 Gen Intel® Core™ i7 Processor
36,220.00 36220.0 ZAR Excl. VAT
BOXER-6646-ADP-A2
Fanless Compact Embedded Computer with 12 Gen Intel® Core™ i5 Processor
30,110.00 30110.0 ZAR Excl. VAT
DI-1100-I7
8th Generation Intel Core i7-8665UE High Performance, Compact and Modular Rugged Embedded Computer
29,860.00 29860.0 ZAR Excl. VAT
ALPHA-IN12-i7-16G-512G
IONN Alpha Compact Fanless Emb PC i7-1255U, 16G RAM, 512G SSD
25,425.00 25425.0 ZAR Excl. VAT
DI-1100-I5
8th Generation Intel Core i5-8365UE High Performance, Compact and Modular Rugged Embedded Computer
25,030.00 25030.0 ZAR Excl. VAT
BOXER-6646-ADP-A1
Fanless Compact Embedded Computer with 12 Gen Intel® Core™ i3 Processor
23,995.00 23995.0 ZAR Excl. VAT
ALPHA-IN-50007
IONN Alpha Compact Fanless Embedded Computer with Intel i7-8565U Processor, 8GB RAM, 256GB SSD
23,505.00 23505.0 ZAR Excl. VAT
DX-1200
12th Gen. Intel® Core™ Series High Performance and Compact Rugged Embedded Computer
22,010.00 22010.0 ZAR Excl. VAT
ALPHA-IN-1000
IONN Alpha Compact Fanless Embedded Computer with Intel i5-8265U Processor, 8GB RAM, 256GB SSD
19,620.00 19620.0 ZAR Excl. VAT
DX-1100
EMB PC 8TH GEN UPTO XEON
9/8th Generation
19,530.00 19530.0 ZAR Excl. VAT
ALPHA-IN8-i3-8G-256G-S4
IONN Alpha Compact Fanless Embedded Computer with Intel i3-8145U Processor, 8GB RAM, 256GB SSD
17,235.00 17235.0 ZAR Excl. VAT
DV-1000
9/8th Gen. Intel® Core™ Series High Performance and Essential Rugged Embedded Computer H310 Chipset
16,055.00 16055.0 ZAR Excl. VAT
ALPHA-SV10-I3-S4-WP2
IONN ALPHA Half Size i3-10110U, 16GB, 256GB, 4xCOM, WIFI & Win10Pro
10,655.00 10655.0 ZAR Excl. VAT
ALPHA-IW10-I5-S2L2-00
IONN Alpha Fanless Embedded System I5-10210U, Barebone
8,490.00 8490.0 ZAR Excl. VAT
ALPHA-SV5-I5-WP
IONN Alpha EMB PC Fanless i5-5300U with WIFI, 8GB RAM, 256GB Storage, Windows 10 Pro 64 bit, 4xRS232
7,850.00 7850.0 ZAR Excl. VAT
ALPHA-IW10-I3-S2L2-00
IONN Alpha Fanless Embedded System i3-10110U, Barebone
7,025.00 7025.0 ZAR Excl. VAT