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 gold contacts and black memory chips

OWC

OWC 4GB DDR3 1600 PC3-12800 CL11 2Rx8 204-pin 1.5V Non-ECC SODIMM for QNAP IS-400 Pro TVS-471 TVS-671 TVS-871

SKU CH-BKKX-6SB3E

A 4GB DDR3 1600 CL11 SODIMM upgrade for QNAP IS-400 Pro, TVS-471, TVS-671 and TVS-871 NAS systems

  • Capacity4GB
  • Type204-Pin DDR3 Non-ECC SODIMM
  • SpeedDDR3 1600 (PC3 12800)
  • CAS LatencyCL11
  • Voltage1.5V
  • ECCNo
  • Boost NAS responsiveness with 4GB DDR3 1600 CL11 module
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single 204-pin SODIMM fits QNAP IS-400 Pro TVS-471 TVS-671 TVS-871
  • Unbuffered non-ECC 1.5V design installs without tools
  • Replaces QNAP part RAM-4GDR3-SO-1600 for exact compatibility

OWC 4GB DDR3 SODIMM for QNAP NAS

This OWC module delivers 4GB of DDR3 1600 memory in a 204-pin SODIMM form factor. It is built to JEDEC standards and validated for QNAP IS-400 Pro, TVS-471, TVS-671 and TVS-871 systems. The unbuffered, non-ECC design operates at 1.5V with CL11 latency. It installs as a straightforward DIY upgrade.

Verify your NAS model and slot layout

Confirm the exact QNAP model number matches the supported list before ordering. Check how many SODIMM slots your unit provides and whether existing modules must be removed to make room. Ensure the system accepts 2Rx8 rank configuration and non-ECC memory. The module requires a 204-pin DDR3 slot running at 1.5V.

Steady throughput for multi-tasking workloads

Under sustained load the CL11 timing and 1600MHz data rate maintain consistent bandwidth for file serving, virtualization and simultaneous applications. The 2Rx8 organization helps keep signal integrity stable during extended operation. JEDEC-compliant voltage regulation prevents thermal throttling during long uptime periods.

Highlights

  • Boost NAS responsiveness with 4GB DDR3 1600 CL11 module
  • JEDEC and RoHS compliant for warranty-safe upgrades
  • Single 204-pin SODIMM fits QNAP IS-400 Pro TVS-471 TVS-671 TVS-871
  • Unbuffered non-ECC 1.5V design installs without tools
  • Replaces QNAP part RAM-4GDR3-SO-1600 for exact compatibility

Specifications

BrandOWC
Part Number1S6D32R804GB
Capacity4GB
Type204-Pin DDR3 Non-ECC SODIMM
SpeedDDR3 1600 (PC3 12800)
CAS LatencyCL11
Voltage1.5V
ECCNo
Buffered/RegisteredUnbuffered
Rank2Rx8
Heat SpreaderNo
Compatible SystemQNAP IS-400 Pro
QNAP TVS-471
QNAP TVS-671
QNAP TVS-871

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

Does the OWC 4GB DDR3 1600 SODIMM arrive as a single stick or do I need to buy a second module to fill a channel?

The upgrade consists of one 4GB 204-pin DDR3 1600 CL11 1.5V non-ECC SODIMM. Add a second identical module only if your QNAP model has a free slot and you want dual-channel bandwidth.

My TVS-671 has two slots — should I choose this 4GB stick or a larger capacity?

This part number 1S6D32R804GB provides 4GB per slot. Install two for 8GB total, or select a higher-capacity module if the NAS supports larger SODIMMs and you need more memory.

What does the PC3-12800 1600MHz rating mean once the module is installed in my IS-400 Pro?

The memory will run at DDR3 1600 with CL11 latency at 1.5V, delivering up to 12800 MB/s theoretical bandwidth for faster multitasking and file handling on the NAS.

Also in this aisle

People compared these

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