General Knoppix support for those who've read the FAQ at the Wiki
A-Tech 8GB DDR3 1600 PC3-12800 Laptop SODIMM 204-Pin Memory RAM PC3L DDR3L 1x 8G
$13.99
Crucial DDR3L 16GB 1600 2x 8GB PC3-12800 Laptop SODIMM Memory RAM PC3 16G DDR3
$21.50
HyperX FURY DDR3 8GB 16GB 32GB 1600 MHz PC3-12800 Desktop RAM Memory DIMM 240pin
$14.50
Crucial DDR3L 16GB 1600 2x 8GB PC3-12800 Laptop SODIMM Memory RAM PC3 16G DDR3
$13.50
Samsung 16GB 2RX8 PC4-2400T SODIMM Laptop RAM Memory M471A2K43CB1-CRC - HVD
$22.69
Crucial 16GB (2x 8GB) Kit DDR3L 1600MHz PC3-12800 UDIMM Desktop 240-Pin CL11 RAM
$22.85
10 Pieces Samsung PC3-12800 8GB DDR3 1600 MHz PC3-12800 DDR3 Memory
$65.00
HyperX FURY RAM DDR4 16GB 8GB 32GB 4GB 3200 2666 2400 2133 Desktop Memory DIMM
$9.64
Kingston HyperX FURY DDR3 8GB 16GB 32G 1600 1866 1333 Desktop Memory RAM DIMM
$39.95
HyperX FURY DDR4 16GB 32GB 64GB 2666MHz PC4-21300 Desktop RAM Memory DIMM 288Pin
$119.80