General Knoppix support for those who've read the FAQ at the Wiki
Dell PowerEdge R640 40 Core Server 2X Gold 6148 H730P CTO- Custom- Wholesale
$694.99
Dell R730xd 26 Port SFF 2x E5-2697v4 36-Cores H730 128GB Server 2x SFP 10G ENT
$490.00
1U 20" Short Depth Server Firewall PFSense X11SSH-F Xeon 3.5Ghz 32GB RAM NVME
$247.00
1U Server S31A-1U 2x NVME M.2 2280 Xeon Skylake 3.5Ghz 16GB DDR4 RAIL 2x 1GBE
$199.00
Dell PowerEdge R620 Server 2x E5-2660 v2 2.2GHz 20 Cores 256GB RAM 1x 480GB SSD
$125.99
Dell Poweredge R210 II Server Xeon E3-1220 v2 3.1ghz Quad Core / NoRam / 1x Tray
$69.99
Dell PowerEdge R730XD 28 Core Server 2X Xeon E5-2680 V4 H730 128GB RAM No HDD
$389.99
Dell PowerEdge R620 Server - 256GB RAM, 2x8cCPU, 120Gb SSD/3x900Gb SAS, Proxmox
$320.00
R630 DELL 8 x 2.5'' POWEREDGE 2X E5-2680V4 32GB RAM IDRAC ENT & NDC 2X 495W PSU
$169.95
Dell PowerEdge R620 1u Server 2x E5-2660 v2 20 Cores 256GB 480GB SSD H710P Mini
$152.99