Memory, 16GB, DDR4, 2666MHz
Apple Part Number: 661-10241
1-Year Warranty
Full replacement
Fast Shipping
1-2 business days
Tested & Verified
QA before ship
Expert Help
Install guidance
Compatibility
| Model | Order # | Model # | EMC | Identifier | Processor |
|---|---|---|---|---|---|
| iMac (Retina 4K, 21.5-inch, 2019) | MRT32LL/A | A2116 | 3195 | iMac19,2 | 3.0 GHz 6-Core Intel Core i5 |
| iMac (Retina 5K, 27-inch, 2020) | MXWT2LL/A | A2115 | 3442 | iMac20,2 | 3.3 GHz 6-Core Intel Core i5 |
| iMac (Retina 5K, 27-inch, 2019) | MRQY2LL/A | A2115 | 3194 | iMac19,1 | 3.0 GHz 6-Core Intel Core i5 |
| Mac mini (Late 2018) | MRTR2LL/A | A1993 | 3213 | Macmini8,1 | 3.6 GHz Quad-Core Intel Core i3 |
| iMac 27-inch 5K 2020 | A2115 | iMac20,1 / iMac20,2 | Intel Core i5/i7/i9 |
Shop all parts for this Mac
About this part
The Memory, 16GB, DDR4, 2666MHz (Apple part number 661-10241) is a genuine Apple part that fits the iMac (Retina 4K, 21.5-inch, 2019), iMac (Retina 5K, 27-inch, 2020), iMac (Retina 5K, 27-inch, 2019) and 2 other models. Memory modules give macOS room to run apps at the same time.
Before you order, match the model identifier on your Mac (Apple menu, About This Mac, System Report) to one of the identifiers listed for this part: iMac19,2, iMac20,2, iMac19,1, Macmini8,1 and iMac20,1 / iMac20,2.
Signs the memory module needs replacing
- Beeps at startup with no picture
- Kernel panics or apps quitting unexpectedly
- Less memory reported than installed
- Heavy slowdowns and memory pressure warnings
Not sure the memory module is the real cause? We diagnose the Mac before replacing anything, and we can install this genuine Apple part for you through our iMac repair service, in our Tampa shop or by mail-in repair from anywhere in the US.
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