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Green rectangular SODIMM module with black chips and gold edge contacts

OWC

OWC 8GB DDR5 4800 CL40 1Rx8 262-pin 1.1V SODIMM memory upgrade

SKU CH-Z7VC-D6F4Q

8 GB DDR5 4800 CL40 SODIMM module validated for TerraMaster F2-424, F4-424, F4-424 MAX, F4-424 PRO and F6-424 NAS systems

  • Total capacity8 GB
  • Rated speedDDR5 4800 (PC5 38400)
  • CAS latency40
  • Rated voltage1.1 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • 8GB DDR5 module boosts NAS responsiveness with 4800MHz speed
  • CL40 latency delivers snappy multitasking for TerraMaster F2-424, F4-424, F6-424
  • 1V operation reduces power draw and heat in compact bays
  • 262-pin SODIMM form factor fits TerraMaster NAS slots without adapters
  • JEDEC-standard build ensures warranty-safe upgrade and reliable long-term operation

TerraMaster NAS memory upgrade

This OWC DDR5 SODIMM adds 8GB of system memory to compatible TerraMaster F2-424, F4-424, F4-424 MAX, F4-424 PRO and F6-424 units. It is built for owners who need more capacity for simultaneous workloads on these specific NAS models.

262-pin DDR5 4800 CL40 module

The stick fits a single SO-DIMM slot and runs at 1.1V without a heat spreader. It requires an available DDR5 SODIMM socket in one of the listed TerraMaster systems and leaves other slots free for further expansion if the chassis allows.

JEDEC-standard DDR5 4800 operation

Rated at PC5-38400 with CL40 latency, the module maintains its specified speed under continuous load because it follows the baseline DDR5 voltage and timing profile. It does not target overclocked profiles or higher-frequency XMP settings.

How it compares

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

Price $145.99
Cheaper than about 62% 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).
CAS latency 40
Higher than about 70% of the 483 comparable items (median 22).
Price per GB $18.25 per GB
Pricier than about 64% 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 number4S8D51R808 GB
Total capacity8 GB
Product type262-Pin DDR5 Non-ECC SODIMM
Performance
Rated speedDDR5 4800 (PC5 38400)
Memory
CAS latency40
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.1 V
Compatibility
Compatible systemsTerraMaster F2-424
TerraMaster F4-424
TerraMaster F4-424 MAX
TerraMaster F4-424 PRO
TerraMaster F6-424

Other versions of this model

5 more in the same range

Questions about this item

Does the CL40 latency limit responsiveness under sustained load?

CL40 is the JEDEC-standard CAS latency for DDR5-4800 modules; it defines the minimum cycle delay before data is available.

How much heat or power does the 1.1 V module add during all-day NAS operation?

At 1.1 V the unbuffered SODIMM draws minimal power and has no heat spreader, so thermal contribution inside the TerraMaster chassis stays low.

Which TerraMaster model must I already own for this 262-pin DDR5 SODIMM to work?

It is validated for TerraMaster F2-424, F4-424, F4-424 MAX, F4-424 PRO and F6-424 units.

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