RAM & Storage Compatibility for WD My Cloud PR4100
The WD My Cloud PR4100 is a 4-bay NAS from the My Cloud Pro range. It uses DDR3L memory with 2 RAM slots, upgradeable to a maximum of 16GB.
Memory Specifications
| Specification | Details |
|---|---|
| Memory Type | DDR3L |
| RAM Slots | 2 |
| Max RAM | 16GB |
| RAM Speed | 1600 MHz |
| Drive Bays | 4 |
| SSD Cache | None |
| ECC Support | No |
Recommended RAM Upgrades
Best RAM: Crucial DDR4 SODIMM 8GB
Fully tested for NAS compatibility. Non-ECC SODIMM that works reliably with WD devices.
Official WD Memory Module
The official WD-branded memory module guarantees compatibility but typically costs more than third-party options.
Recommended Hard Drives
Best NAS HDD: Seagate IronWolf 4TB
Purpose-built for NAS with AgileArray technology, vibration sensors, and 3-year Rescue Data Recovery. Rated for 24/7 operation.
Frequently Asked Questions
Can I upgrade the RAM in the WD My Cloud PR4100?
Yes, the WD My Cloud PR4100 has 2 RAM slots and can be upgraded to a maximum of 16GB.
What type of RAM does the WD My Cloud PR4100 use?
The WD My Cloud PR4100 uses DDR3L running at 1600 MHz. Non-ECC SODIMM modules are compatible.
Shop Compatible Upgrades at PCHub.UK
Prices updated automatically from PCHub.UK — click to view full specs and buy
Prices from PCHub.UK via ComputersDeal. As an affiliate, we may earn from qualifying purchases. Prices updated 2026-04-10 08:16:07.
