SK HYNIX 8GB 1RX8 DDR4 SO-DIMM PC4-21300 2666MHZ Memory Module HMA81GS6JJR8N-VK

Good quality Hynix SO-DIMM memory. I used it to double the memory in a laptop I received recently. It was the exactly the same make and model memory that was already in the laptop. Worked perfectly.Very happy with the purchase.

Had 2 open SO-DIMM slots on my laptop. Wanted to double laptop RAM to 32GB.Ordered 2 RAM modules.Very Fast shipping and good packaging.One module is correct Part Number as listed and matches original RAM:Part# HMA81GS6JJR8N-VK (green)*One module is incorrect Part Number as listed and is slightly mismatched with original RAM:Part# HMA81GS6DJR8N-VK (black, see photo)Photo: Top Module is original (green). Bottom two modules (black and green) are what was received from AISPEX.After a few months Everything seems to work mostly* fine if installed into the correct SO-DIMM slot.Not sure why, but the laptop would only boot if the mismatched HMA81GS6DJR8N-VK (black) module is in the #4 SO-DIMM slot. Check with your motherboard's manual for correct installation order. Had to juggle modules in different slots to get the correct sequence to boot.Also I did experience a few prolonged freeze-ups (60-240 seconds system completely frozen) when memory usage was near max 32GB but this only happened occasionally in the first two weeks since installation and never happened again since. Yes I updated the BIOS before installation. If this kept happening or if the laptop stopped booting I would of returned the mismatched module and asked for a matching one but so far so good.According to HWInfo: No overheating issues, Clock Speeds run as advertised and RAM timings match for all modules. Having 32GB RAM is very noticeable improvement over 16GB RAM, no more slowdowns when multitasking. 32GB RAM is probably the new minimum for laptops now with Windows 11 or even Windows 10 now.Would buy from memory modules from AISPEX again. Hopefully next time the modules will match.*Note these were listed as "new" but I suspect these are used/refurbished. It seems to have worked out this time though.Good job!

I removed an old 4GB RAM module and installed the two 8GB modules. The laptop started and showed the new 16GB of memory instantly.

I bought this to upgrade ram in a laptop. It already had a stick of this in it. I don't like mixing manufacturers. Worked as expected.

Worked perfectly. Made a perfect match for the existing one.

Works fine in my laptop.

I didn't feel the need to go overboard with a bigger name brand and went with exactly what this Hp Probook already had in it for no questions asked compatibility. If Hp used it to produce systems It's probably perfectly adequate. Hynix has been used in systems by all the big manufacturers for decades anyway. Disabled the battery, added it, powered on, and after the BIOS found it, I checked that it was recognized, then I it booted right into windows without a hitch. On a side note, I received a 2666mhz stick instead of the 2400. Technically I got a faster stick for the same price, though it's clocked down of course due to the board/CPU's max BUS of 2400..

I will buy again...