Anbieter: OWC
OWC 128GB (4 x 32GB) PC4-21300 DDR4 2666MHz SODIMMs ram memory upgrade
Beschreibung
OWC Memory. Built for Macs + PCs. Experience your computer's true performance potential.
Improve System Speed
OWC Memory is the most cost effective and simple DIY upgrade you can install to unleash your Mac or PC's full potential, and speed up overall responsiveness.
More Apps. More Files
Become a multi-tasking maven when you upgrade your Mac or PC with OWC Memory. Open more apps. Open larger files. Plus, work with multiple files all at the same time.
Save $$ vs Factory
Save BIG vs factory memory options. Plus, select among options not offered by the factory. OWC makes it easy to find the perfect upgrade to fit your needs.
Lab Tested Compatibility
We test every OWC memory module at our in-house lab so you can upgrade with the confidence that your memory is built-to-last.
Lifetime Warranty
We built your OWC Memory upgrade to meet or exceed the toughest industry specs to provide years of worry-free service.
Step-by-Step Videos
Our detailed install videos guide your upgrade from start to finish. We provide all the steps to make your OWC Memory upgrade DIY easy.
Includes
(1) 128GB (32GB x 4) PC21300 2666MHz DDR4 SO-DIMM memory module
OWC Memory Lifetime Limited Warranty
- Data Rate: 2666MT/s
- I/O Clock Speed: 1333MHz
- Registration: Non-registered
- Error Correction: Non-ECC
- Cycle Time: 0.75 ns
- Form Factor: SO-DIMM
- Type of Memory: DDR4
- PC Speed: 21300
- Timing: CAS = 18.0
- Full Parameters: 18-18-18-14
- Bandwidth: 21.3GB/s
- JEDEC: Fully compliant with JEDEC specifications
- Capacity: 128GB (32GB x 4)
- Voltage: 1.2 Volts
- Pin Count: 260-pin
- Printed Circuit Board Type: Low noise 8-layer PCB
- RoHS Compliant: Yes
- Ambient Temperature: Operating: 32°F to 185°F (0°C to 85°C)
- Note: PC4-21300 DDR4 2666MHz SO-DIMMs will operate at 2400MHz speeds in iMac19,2 models with 3.6GHz Quad-Core i3 Processor. This memory will operate at full 2666MHz speeds in other iMac19,2 models.
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iMac:
- iMac (Retina 5K, 27-inch, Mid 2020) Model ID: iMac20,2 - A2115 - EMC - 3442
- iMac (Retina 5K, 27-inch, Mid 2020) Model ID: iMac20,1 - A2115 - EMC - 3442
- iMac (Retina 5K, 27-inch, Early 2019) Model ID: iMac19,1 - A2115 - EMC - 3194
- PC Compatible
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Notes:
- For 27-inch iMac (2020) models – iMac20,1 and iMac 20,2 – OWC recommends that all DIMMs be the same capacity, speed, and manufacturer to ensure optimal memory performance.
🧠 Installing RAM in a 2019 iMac (Up to 128GB)
Step-by-step guide to ensure a smooth upgrade
Power off your iMac and unplug the power cable.
Disconnect all peripherals — USB, Thunderbolt, drives, monitors, etc.
Press and hold the power button for 10 seconds (to discharge residual power).
Install just one RAM module in an empty slot.
Plug in the iMac and power it on. Let it boot fully into macOS.
Shut down the iMac again.
Add a second RAM module, then repeat the power-on and full boot process.
Continue this one module at a time until all RAM is installed.
Once all modules are installed and your iMac boots successfully, reconnect your peripherals.
💡 Why this method?
Installing all 128GB at once can sometimes prevent the iMac from booting. This step-by-step method helps your system initialize memory properly and avoids false boot issues.
