Poblopuablothis is joke prices , all of them .
and this is only 8GB ( 4GB x 2 )
also can be found for $62.99 for 2666mhz model with free shipping , just google it .
PoblopuabloAX4U3000316G16-DRG is 32GB of RAM (16GB x 2)
AX4U320038G16-DR10 is 16GB of RAM (8GB x 2) [higher frequency but half as much RAM]
"W4G" = 4GB DIMMS x2
"38G" = 8GB DIMMS x2
"316G" = 16GB DIMMS x2
TheHallEffectAX4U3000316G16-DRG -- this is DDR4 3000 "16GB" 1024x8 Red, DUAL COLOR BOX-RED GD10-HS
AX4U320038G16-DR10 -- this is DDR4 3200 "8GB" 1024 x 8 Red, DUAL COLOR BOX-RED GD10-HS
Capacity is different.