General Knoppix support for those who've read the FAQ at the Wiki
$168.00
1U Supermicro Server 10 Bay 2x Intel Xeon 3.3Ghz 8C 128GB RAM 240GB SSD 2x 10GBE
$259.00
HP ProLiant Microserver Micro Server HSTNS-5151 untested NO DRIVE CADDIES
$54.68
*READ* SYS-5019S-M2 - Supermicro 813M-3 4X3.5" 32GB DDR4
$260.00
HPE ProLiant MicroServer Gen10
$420.00
HP ProLiant MicroServer HSTNS-5151
$59.99
HP ProLiant MicroServer Generation 8 Xeon 4gb 4-BAY 2x500GB HDD (included)
$200.00
Auction Supermicro Server 3U MicroCloud - 12 Node 5039MS-H12TRF X11SSE-F 3.5Ghz
$2499.00
BARRACUDA BBS890 (SuperMicro Server) - NO RAM, NO HDD, NO CPU
$150.00
1U BareMetal pfsense opnsense Router Firewall DNS Server 6x 10GB Ethernet Ports
$149.00