General Knoppix support for those who've read the FAQ at the Wiki
256GB RAM(4x 64GB PC4 DDR4 19200 2400T) Memory for Poweredge R840 R940 T640
$406.48
Adata Predator 16GB (2x8GB) DDR4 3200MHz PC4-25600 AM2P32NC8T1-BGTS Desktop Ram
$29.00
Micron MTA72ASS16G72LZ-3G2 128GB 4DRX4 PC4-3200AA LRDIMM ECC Server RAM Memory
$429.98
A-Tech 8GB DDR3 1600 PC3-12800 Laptop SODIMM 204-Pin Memory RAM PC3L DDR3L 1x 8G
$13.99
Hynix 32GB DDR4 3200 MHz PC4-25600 SODIMM 260-Pin 2Rx8 Laptop Memory RAM 1x 32G
$50.00
Team T-FORCE VULCAN Z 32GB (2 x 16GB) PC RAM DDR4 3200 (PC4 25600) Memory
$54.99
Samsung 8GB (2 x 4GB) PC3-12800U DDR3 Memory RAM M378B5173QH0-CK0
$9.99
Lot of 100x SK Hynix HMA851S6CJR6N-VK 4GB 1Rx16 PC4-2666V So-Dimm RAM Memory
$300.00
256GB RAM(8x 32GB DDR4 PC4 2RX4 2133P) Memory for Poweredge T430 T630 R930
$362.39
128GB RAM(2x 64GB PC4 DDR4 19200 2400T) Memory for Proliant DL360 DL380 G9 Gen9
$206.57