General Knoppix support for those who've read the FAQ at the Wiki
Dell PowerEdge R430 3.5 1U 2x E5-2666 v3 2.9ghz 20-Cores 128gb 4x Trays 2x 550w
$364.99
New Gigabyte 10 bay SFF Server 2x Xeon Gold 6130 32 Cores 128GB DDR4 3x PCIe
$788.00
Dell PowerEdge R630 Server 2x E5-2680 V4 = 28 Cores H730 32GB RAM 2x 1.2TB SAS
$373.99
iDRAC 7 8 9 & idrac 9 X5 X6 Enterprise License for G12, G13,G14, G15 Gen Server
$35.96
Dell PowerEdge R630 Server 2x E5-2680 V4 = 28 Cores S130 32GB RAM NEW 480GB SSD
$208.99
Dell PowerEdge R420 Dual Intel Xeon E5-2440 v2 @1.90GHz 32GB RAM No HDD H710
$74.50
Dell PowerEdge R620 Server 2x E5-2660 v2 2.2GHz 20 Cores 256GB RAM 1x 480GB SSD
$139.99
Dell PowerEdge R620 Server - 256GB RAM, 2x8cCPU, 120Gb SSD/3x900Gb SAS, Proxmox
$320.00
1U Supermicro Server 10 Bay 2x Intel Xeon 3.3Ghz 8C 128GB RAM 480GB SSD 2x 10GBE
$273.00
Dell PowerEdge R630 Server 2x E5-2680 V4 = 28 Cores H730 128GB RAM 2x 1.2TB SAS
$543.99