We take cryptocurrency — so the coins you hold can buy real hardware.Pay in crypto, spend it on real hardware. Free insured shipping worldwide over $399. Plain, unbranded boxes, sent from Germany.Free insured shipping over $399. Your rate is locked for 30 minutes once checkout opens.Rate locked 30 minutes. Every item sealed, serial-checked and covered by a 24-month warranty.Sealed, 24-month warranty.

Saved items Sign in
Green circuit board with black memory chips, gold edge connector, no heat spreader

OWC

OWC 4GB DDR3 1600 CL11 2Rx8 240-pin 1.5V Non-ECC UDIMM memory upgrade

SKU CH-MC6Y-S2RWS

A 4 GB DDR3 1600 CL11 UDIMM upgrade for QNAP TS-1279U-RP, TS-1679U-RP and TS-879U-RP

  • Capacity4GB
  • Type240-Pin DDR3 Non-ECC UDIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCNo
  • 4GB DDR3 1600 CL11 module adds responsive capacity for multitasking
  • JEDEC and RoHS compliant design ensures warranty-safe operation
  • Single 240-pin 1.5V unbuffered DIMM fits QNAP TS-1279U-RP TS-1679U-RP TS-879U-RP
  • 2Rx8 organisation delivers 4GB in one slot without ECC overhead
  • PC3-12800 speed rating matches original QNAP RAM-4GDR3-LD-1600 specification

4GB DDR3 upgrade for QNAP NAS

This 4GB DDR3 1600 CL11 UDIMM is built for the QNAP TS-879U-RP, TS-1279U-RP and TS-1679U-RP. It replaces the original QNAP part RAM-4GDR3-LD-1600 and adds a single unbuffered non-ECC module to compatible rackmount systems.

Tool-free DIMM installation with one caveat

The 240-pin module seats in the standard desktop DIMM slot and requires no special tools. The main issue is mixing ranks: this stick is 2Rx8, so adding it alongside 1Rx8 modules can prevent the NAS from posting. Match the existing rank configuration or populate all slots with identical modules.

Verify model, slot count and maximum memory

Confirm the exact NAS model number on the chassis label before ordering. Check how many DIMM slots your unit has and the maximum supported capacity per slot in the QNAP hardware guide. This module is not compatible with other QNAP series or standard desktop motherboards.

Highlights

  • 4GB DDR3 1600 CL11 module adds responsive capacity for multitasking
  • JEDEC and RoHS compliant design ensures warranty-safe operation
  • Single 240-pin 1.5V unbuffered DIMM fits QNAP TS-1279U-RP TS-1679U-RP TS-879U-RP
  • 2Rx8 organisation delivers 4GB in one slot without ECC overhead
  • PC3-12800 speed rating matches original QNAP RAM-4GDR3-LD-1600 specification

Specifications

BrandOWC
Part Number1U6D32R804GB
Capacity4GB
Type240-Pin DDR3 Non-ECC UDIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemQNAP TS-1279U-RP
QNAP TS-1679U-RP
QNAP TS-879U-RP

Other versions of this model

5 more in the same range

Same family, different memory, cooler or clock — compare before you commit.

Questions about this item

How do I confirm the 4GB DDR3 1600 CL11 module is running correctly after installing it in my QNAP TS-1279U-RP?

Enter the QNAP NAS web interface and open the system information or hardware monitor section; it will display the installed memory capacity, speed and type so you can verify the 4GB DDR3 1600 module is recognised.

What comes in the box and do I need to buy anything else to install this 240-pin UDIMM?

The box contains a single 4GB DDR3 1600 PC3-12800 CL11 2Rx8 240-pin 1.5V Non-ECC UDIMM module; no extra parts or tools are required for installation.

Which version should I choose for my QNAP TS-879U-RP — are there different capacities or speeds listed?

This specific part number 1U6D32R804GB is a single 4GB DDR3 1600 CL11 2Rx8 1.5V Non-ECC UDIMM; select this module to match the specifications required by the TS-879U-RP.

Also in this aisle

People compared these

Same shelf, same checkout — eight coins and a 30-minute rate lock.