I have some spare RAM modules:
2 DIMMs of 4 GB each, DDR4-2133 CL14
- Kingston HyperX, HX421C14FBK2/8
- used for a short time before I replaced them by higher capacity modules; i.e. they worked for me and I probably checked with memtest86 too, but don't remember how extensively I tested
6 DIMMs 4 DIMMs of 4 GB each, DDR3-1333 (PC3-10600) CL9
- Kingston ValueRAM unregistered ECC
- also works in non-ECC boards, but does not work in boards which require registered RAM
- never used; bought a while ago together with more modules of this type when I upgraded several PCs in a row; some PCs were then left out due to software licensing inconveniences — IOW I never tested these 6 sticks for being error-free, but all other sticks of the same type that I bought at the time were fine
- originally as 2 kits of 3 modules each: KVR1333D3E9SK3/12G,
but I can of course rip these kits apart and send in the quantity that is desired
now 2×2 modules left
And then there are also 4 DIMMs of 2 GB modules, DDR2-800 (PC2-6400) CL5, unregistered ECC. But I would be surprised if people still operate DDR2 based crunching rigs.
I ship from the EU.
edit, March 4:
2 DIMMs went onto a flight towards the rising sun.