Ram question about MacBook Air 2015

[Chesco]

Good Night.
I recently updated my Late 2015 iMac 27" " by installing a Nvme WD_Black SN850X and 32Gb of Ram (4x8Gb).
I keep 8Gb 1867MHz DDR3 Ram memory (2x4Gb) that were removed to install the 32Gb.
I have purchased a MacBook Air from 2015 that has 4Gb (2x2Gb) of 1600MHz DDR3 Ram installed.
My question is: can I use my 8Gb 1867MHz DDR3 Ram memory (2x4Gb) in my 2015 MacBook Air which is installed (2x2Gb) DDR3?

 

[flaubert]

I don't believe that the RAM can be replaced in a 2015 MacBook Air; by that point Apple was using soldered RAM in their laptops. See this description:

MacBook Air "Core i5" 1.6 13" (Early 2015) Specs (Early 2015, MJVE2LL/A*, MacBookAir7,2, A1466, 2925): EveryMac.com

Technical specifications for the MacBook Air "Core i5" 1.6 13" (Early 2015). Dates sold, processor type, memory info, hard drive details, price and more.

everymac.com

(scroll down to the section "Standard RAM", then click on the Maximum Ram link to open that section)

 

[Bigwaff]

I don't believe that the RAM can be replaced in a 2015 MacBook Air; by that point Apple was using soldered RAM in their laptops.

@flaubert is correct. @Chesco RAM had to be configured at time of purchase.

 

[Chesco]

I wanted to install an Nvme and expand the Ram, as I did with my 27" iMac, obtaining excellent results. So, listening to yours comments, although the purchase price is good (150€) and the aesthetic aspect as well, I don't think that a device that is limited to 4Gb of Ram is worth it.
Thank you so much.