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Computer Memory Solutions
Computer Memory Solutions 64GB (4x16GB) DDR4 2666MHz CL19 DIMM memory upgrade
64GB DDR4 kit with four 16GB DIMMs at 2666MHz CL19 for Dell OptiPlex XE3 SFF and XPS 8930 desktops
- Capacity64GB (4 x 16GB)
- Type288-Pin DDR4 SDRAM
- SpeedDDR4 2666 (PC4 21300)
- CAS LatencyCL19
- Timing19-19-19
- Voltage1.20V
- 64 GB total capacity from four 16 GB modules
- DDR4 2666 MHz speed for responsive multitasking
- CL19 CAS latency with 19-19-19 timing
- 20 V low-voltage operation reduces power draw
- Validated for Dell OptiPlex XE3 SFF and XPS 8930
What this kit upgrades
This 64 GB kit consists of four 16 GB DDR4 DIMMs rated at 2666 MHz with CL19 timing. It is built for Dell OptiPlex XE3 Small Form Factor and XPS 8930 Desktop systems that use 288‑pin unbuffered non‑ECC memory.
Capacity and headroom
The four modules fill all four sockets and reach the platform’s 64 GB maximum. Everyday multitasking, large spreadsheets and virtual machines run comfortably; workloads that need more than 64 GB or faster transfer rates will hit the ceiling of this configuration.
What the bundle changes
Installing the matched quad‑channel set lets the memory controller run at its rated 2666 MHz instead of down‑clocking to the slowest module. A 64‑bit operating system is required to address the full 64 GB.
Highlights
- 64 GB total capacity from four 16 GB modules
- DDR4 2666 MHz speed for responsive multitasking
- CL19 CAS latency with 19-19-19 timing
- 20 V low-voltage operation reduces power draw
- Validated for Dell OptiPlex XE3 SFF and XPS 8930
Specifications
| Brand | Computer Memory Solutions |
|---|---|
| Model | CM2048642666DIMM |
| Capacity | 64GB (4 x 16GB) |
| Type | 288-Pin DDR4 SDRAM |
| Speed | DDR4 2666 (PC4 21300) |
| CAS Latency | CL19 |
| Timing | 19-19-19 |
| Voltage | 1.20V |
| ECC | No |
| Buffered/Registered | Unbuffered |
| Rank | 2Rx8 |
| Chipset | Major Brand Chipset |
| Heat Spreader | No |
| Compatible System | Dell OptiPlex OptiPlex XE3 Small Form Factor (SFF), XPS 8930 Desktop |
| Package Content | 4 Memory RAM Sticks |
Questions about this item
Will the 2666MHz DDR4 modules downclock to match my existing slower DDR4 sticks in the Dell XPS 8930?
Yes, all memory in the system will run at the slowest performance of the installed modules or the CPU capability, so faster sticks automatically downclock to match older ones.
How can I verify the 64GB kit is running at the correct 2666MHz CL19 speed after installation?
Check the memory speed and timings in the BIOS or use a tool like CPU-Z; the kit should show 2666MHz with 19-19-19 timings at 1.2V when operating as intended.
Does the package contain only the four 16GB DIMMs or are any tools or cables included for the OptiPlex XE3 SFF install?
The box includes the four 288-pin DDR4 memory sticks only; no tools, cables or additional hardware are supplied for the installation.
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