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Green circuit board with black memory chips and gold edge connectors

OWC

OWC 4GB DDR3 1333 CL9 1.5V 204-pin SODIMM for QNAP TS-670U-RP TS-870U TS-870U-RP

SKU CH-TC6V-HA34X

A 4 GB DDR3 SODIMM module running at 1333 MHz with CL9 latency for QNAP TS-670U-RP, TS-870U and TS-870U-RP NAS systems

  • Total capacity4 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Memory rank1Rx8
  • Boost multitasking with 4GB DDR3 1333 CL9 module
  • JEDEC-standard 1.5V SODIMM ensures warranty-safe upgrade
  • 204-pin non-ECC unbuffered design fits QNAP NAS bays
  • Single 1Rx8 rank simplifies installation in TS-670U-RP
  • PC3-10600 speed rating matches OEM specifications for TS-870U-RP

QNAP TS-670U-RP and TS-870U compatible DDR3 SODIMM

This 4GB DDR3 1333 CL9 module is built specifically for QNAP TS-670U-RP, TS-870U and TS-870U-RP NAS systems. It uses a 204-pin SODIMM form factor and runs at 1.5V without ECC or buffering. The single-rank 1Rx8 design matches the original memory configuration for these appliances.

JEDEC and RoHS compliance keeps the upgrade

The module meets JEDEC standard specifications and is RoHS compliant, so installing it does not void the NAS manufacturer warranty. OWC tests every unit in-house and backs it with a limited lifetime warranty and free technical support. No extra software or drivers are required; the system recognises the memory automatically on boot.

Unbuffered non-ECC design with tool-free slot access

The stick has no heat spreader, allowing it to fit tight SODIMM slots in the QNAP chassis without clearance issues. Gold-edge 204-pin connectors provide reliable contact through repeated insertions. Installation is a straightforward DIY task that typically requires only opening the NAS cover and pressing the module into the slot until it clicks.

How it compares

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

Price $18.99
Cheaper than about 91% of the 21,161 comparable items (median $397.99).
Total capacity 4 GB
Lower than about 90% of the 20,941 comparable items (median 32 GB).
Price per GB $4.75 per GB
Cheaper than about 80% 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 number1S3D31R804 GB
Total capacity4 GB
Product type204-Pin DDR3 Non-ECC SODIMM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportNo
Buffer typeUnbuffered
Memory rank1Rx8
Heat spreaderNo
Power
Rated voltage1.5 V
Compatibility
Compatible systemsQNAP TS-670U-RP
QNAP TS-870U
QNAP TS-870U-RP

Other versions of this model

5 more in the same range

Questions about this item

Will the 4 GB DDR3 1333 SODIMM need replacement as the NAS workload grows?

The module is a single 4 GB stick at 1333 MHz CL9; if the TS-670U-RP, TS-870U or TS-870U-RP needs more capacity you add another identical SODIMM rather than replacing this one.

What limit appears first when the TS-870U-RP runs this memory continuously?

The practical ceiling is the 4 GB capacity per module and the DDR3 1333 CL9 speed rating; the NAS chipset and slot count determine the total usable memory.

How much heat or power does the 1.5 V unbuffered SODIMM add during all-day operation?

At 1.5 V with no heat spreader and standard JEDEC DDR3 power draw, the module contributes minimal extra heat and power load inside the QNAP enclosure.

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