General Knoppix support for those who've read the FAQ at the Wiki
Cisco UCS 5108 Blade Server Chassis Enclosure N20-C6508 4x PSU 8x Fans 2x Fabric
$139.99
Dell PowerEdge FX2s CTO Blade 4 Slot 2U Chassis 2x 2000W
$399.00
HP ProLiant BL460c G9(Gen9) 2x 10 CORE E5-2660v3 2.6GHz 128GB RAM No SSD
$222.00
DELL PowerEdge M630 Blade 2x E5-2690v4 2.6GHz =28 Cores 64GB H330 2x10Gb X520
$264.00
HP Proliant BL460C Gen8 Blade Server 2x 8C E5-2690 192GB Ram
$58.52
Dell PowerEdge 1955 Blade Server 2x Intel Xeon 2.33GHz 4GB / 72gb hdd x 2 omy759
$39.99
Dell PowerEdge FX2S FC830 Blade Server Chassis Enclosure 2*2000W PSU NO BLADES
$299.99
Dell PowerEdge M620 0F9HJC Blade Server 2*E5-2670 2.60GHz 192GB RAM 2*300GB SAS
$90.99
DELL POWEREDGE M620 Blade (2x)Xeon E5-2630 2.3GHz 64GB RAM 250GB HDD NO OS
$59.99
Cisco B200 M3 2x E5-2697 V6 @ 2.70GHz Blade Server 2x HDD Blanks 256GB Ram
$360.00