General Knoppix support for those who've read the FAQ at the Wiki
HP Z440 WORKSTATION XEON E5-1603V3 @ 2.80GHz, 16GB RAM 250 GB SSD Win 11
$119.99
Matched Pair __ Intel Xeon Gold 6152 2.1Ghz 22-Core 140W CPU SR3B4
$209.95
HP Z230 Workstation Towers Xeon E3-1231 V3 3.20ghz 8GB Ram NO HDD
$39.96
Dell Precision 5810 Workstation Xeon E5-1650 6C 3.5GHz 16GB 500GB Win10 K2200
$124.67
Intel Xeon E5-2680 v4 SR2N7 14 Core 2.4 GHz Server Processor
$15.45
SR1XP Intel Xeon E5-2680 v3 12 Core 30MB 2.5GHz LGA 2011-3 Grade A Processor
$4.23
Intel Xeon E5-2697 V4 2.30 GHz 18C 2011-3 2400MHz 45MB 145W SR2JV CPU Processor
$49.99
INTEL XEON GOLD 6148 20 Core SR3B6 2.4GHZ 27.5 MB L3 Cache CPU
$92.99
Intel Xeon E5-2673 V2 SR1UR 3.3 GHz 8 Core 25 MB 110 W LGA 2011 CPU Processor
$40.00
Intel Xeon E5-2690v4 2.6Ghz 14-Core 135W 35MB LGA2011-3 CPU Processor ___ SR2N2
$39.99