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OWC

OWC 8GB DDR4 3200 CL22 1Rx8 UDIMM for TerraMaster U8-322-9100 U8-522-9400 U8-722-2224

SKU CH-GTXP-NGT40

8GB DDR4 3200 CL22 UDIMM for TerraMaster U8-322-9100, U8-522-9400 and U8-722-2224 NAS systems

  • Total capacity8 GB
  • Rated speedDDR4 3200 (PC4 25600)
  • CAS latencyCL22
  • Rated voltage1.2 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8 GB capacity expands multitasking headroom on compatible TerraMaster NAS
  • DDR4 3200 speed with CL22 latency keeps data flowing at PC4-25600 bandwidth
  • 2 V operation reduces power draw and heat in 24/7 NAS environments
  • JEDEC-standard unbuffered non-ECC design ensures warranty-safe drop-in installation
  • Backward compatible with 2133, 2400, 2666 and 2933 MHz systems for flexible deployment

TerraMaster NAS Memory Upgrade

This OWC 8GB DDR4 UDIMM is built specifically for TerraMaster U8-322-9100, U8-522-9400 and U8-722-2224 NAS units. It delivers a direct 8GB capacity increase using a single 288-pin module. The Non-ECC, unbuffered design matches the original system requirements exactly. Installing this module is a straightforward DIY task for expanding NAS memory.

Sustained Operation at CL22 Timing

Running at DDR4 3200 with a CL22 latency and 1.2V voltage, the module maintains stable throughput during long file transfers or multi-user access. JEDEC-standard compliance ensures consistent signalling without voltage drift over extended uptime. The 1Rx8 single-rank organisation keeps the memory controller load predictable. Heat-spreader absence relies on the NAS chassis airflow for passive cooling.

DDR4 3200 Interface Practical Limits

The PC4-25600 interface caps peak bandwidth at the 3200 MT/s data rate, so workloads cannot exceed this ceiling regardless of CPU headroom. Backward compatibility with 2133, 2400, 2666 and 2933 MT/s systems means the module will downclock automatically if the platform demands it. Non-ECC operation provides no error correction for critical data integrity scenarios. Single-module population leaves remaining slots available for further expansion.

How it compares

Measured against everything we stock in Model-Specific Memory Upgrades, at today’s prices. Recalculated every night.

Price $42.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.37 per GB
Cheaper than about 72% of the 20,941 comparable items (median $8.19 per GB).

New to this? Buying memory and SSDs with crypto — what to check, what it costs to pay, and what is never asked for.

Specifications

Product
Brand nameOWC
Part number3U2D41R808 GB
Total capacity8 GB
Product type288-Pin DDR4 Non-ECC UDIMM
Performance
Rated speedDDR4 3200 (PC4 25600)
Memory
CAS latencyCL22
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsTerraMaster U8-322-9100
TerraMaster U8-522-9400
TerraMaster U8-722-2224

Other versions of this model

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Questions about this item

How much heat does the 1.2V DDR4 module add when the NAS runs 24/7?

At 1.2V the stick draws very little power, so its thermal contribution inside a TerraMaster U8 chassis is minimal even during continuous operation.

What must the TerraMaster unit already have for this 288-pin UDIMM to work?

The NAS needs a free DDR4 UDIMM slot and a CPU or chipset that supports non-ECC 3200MHz memory — both are standard on the U8-322-9100, U8-522-9400 and U8-722-2224.

Will this CL22 stick slow down if I keep older 2133MHz modules in the other slots?

Yes — the memory controller will run all installed DIMMs at the lowest common speed, so the 3200MHz module will operate at 2133MHz alongside the older modules.

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