General Knoppix support for those who've read the FAQ at the Wiki
Cisco UCS 5108 Blade Server Chassis Enclosure 8x B200 M4 16x E5-2640v3 128gb
$599.99
Dell PowerEdge M640 Barebone Server Blade No Hard Drive Trays
$499.00
Dell PowerEdge M620 0F9HJC Blade Server 2*E5-2640 2.50GHz 128GB RAM 2*300GB SAS
$149.99
Dell PowerEdge FX2s CTO Blade 4 Slot 2U Chassis 2x 2000W
$399.00
HP Proliant BL460C Gen8 Blade Server 2x 8C E5-2690 192GB Ram
$58.62
HPE PROLIANT BL460C GEN 9 - 2x XEON E5-2620v4 - 64GB MEMORY
$120.00
Google Search Appliance - Dell PowerEdge R710 x2 Xeon X5690 192GB Memory 6TB HDD
$529.99
DELL M630 BLADE SERVER x2 XEON E5-2660V3 @ 2.6GH H730 PERC HDD CADDIES 16GB FC
$50.00
DELL PEM640 POWEREDGE M640 BLADE SERVER
$539.95
HP ProLiant BL460c Gen9 Blade 2x E5-2660v4 2.0GHz =28 Cores 128GB P246 650FLB
$284.00