RAM & Storage Compatibility for TerraMaster U4-423
The TerraMaster U4-423 is a 4-bay NAS from the U (rackmount) range. It uses DDR4 memory with 2 RAM slots, upgradeable to a maximum of 32GB. It also supports 2x M.2 NVMe for SSD caching to accelerate frequently accessed data.
Memory Specifications
| Specification | Details |
|---|---|
| Memory Type | DDR4 |
| RAM Slots | 2 |
| Max RAM | 32GB |
| RAM Speed | 2666 MHz |
| Drive Bays | 4 |
| SSD Cache | 2x M.2 NVMe |
| ECC Support | No |
Recommended RAM Upgrades
Best RAM: Crucial DDR4 SODIMM 16GB
Fully tested for NAS compatibility. Non-ECC SODIMM that works reliably with TerraMaster devices.
Official TerraMaster Memory Module
The official TerraMaster-branded memory module guarantees compatibility but typically costs more than third-party options.
SSD Cache Recommendations
The TerraMaster U4-423 supports 2x M.2 NVMe for SSD caching. Adding NVMe cache SSDs significantly improves random read/write performance for frequently accessed files.
Best Cache SSD: WD Red SN700 500GB NVMe
Designed specifically for NAS use with high endurance ratings. Optimised for 24/7 operation and caching workloads.
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 TerraMaster U4-423?
Yes, the TerraMaster U4-423 has 2 RAM slots and can be upgraded to a maximum of 32GB.
What type of RAM does the TerraMaster U4-423 use?
The TerraMaster U4-423 uses DDR4 running at 2666 MHz. Non-ECC SODIMM modules are compatible.
Related TerraMaster Upgrade Guides
- TerraMaster T6-423
- TerraMaster T9-450
- TerraMaster F5-221
- TerraMaster F2-212
- TerraMaster F4-210
- TerraMaster Upgrade Guide
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