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
Samsung 32GB PC4-17000 (DDR4-2133) Memory (M393A4K40BB0-CPB4Q)
$27.00
Crucial DDR3L 16GB 1600 2x 8GB PC3-12800 Laptop SODIMM Memory RAM PC3 16G DDR3
$22.45
CORSAIR - VENGEANCE LPX 32GB (2x16GB) 3200MHz DDR4 C16 DIMM Desktop Memory
$59.99
A-Tech 8GB PC3-12800 Desktop DDR3 1600 MHz Non ECC 240-Pin DIMM Memory RAM 1x 8G
$13.99
HyperX FURY DDR3 8GB 16GB 32GB 1600 MHz PC3-12800 Desktop RAM Memory DIMM 240pin
$23.95
SAMSUNG 16GB PC3-12800R REGISTERED ECC M393B2G70BH0-CK0 reg server ddr3-1600 USA
$6.95
Samsung 16GB (4x4GB) 1Rx8 PC3-12800U 1600Mhz DDR3 RAM Memory M378B5273DH0-CK0
$14.00
Lot Of 10 Mixed Samsung 16GB 2Rx4 PC4-2133P RDIMM DDR4-17000 ECC Server Memory
$149.99
A-Tech 128GB 8x 16GB 2Rx4 PC4-19200R DDR4 2400 ECC REG RDIMM Server Memory RAM
$175.92