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Green 240-pin DDR3 RDIMM module with black memory chips, no heat spreader

OWC

OWC 1R8D32R416GB 16GB DDR3 1866 CL13 2Rx4 1.5V ECC Registered RDIMM

SKU CH-PKNP-01KWW

A 16GB DDR3 1866 CL13 ECC registered RDIMM for servers and workstations

  • Capacity16GB
  • Type240-Pin DDR3 ECC RDIMM
  • SpeedDDR3 1866 (PC3 14900)
  • CAS LatencyCL13
  • Voltage1.5V
  • ECCYes

Capacity 16GB

Rank 2Rx4

  • ECC registered design protects data integrity in critical workloads
  • 16GB capacity extends server memory headroom for demanding tasks
  • DDR3 1866 speed with CL13 timing delivers responsive throughput
  • 2Rx4 registered architecture fits compatible workstation and server platforms
  • JEDEC and RoHS compliant build ensures warranty-safe upgrades

Server ECC RDIMM

This is a 16GB DDR3 1866 registered ECC module built for workstations, servers, NAS systems and routers. It runs at PC3-14900 speed with CL13 latency and 1.5V operation. The 2Rx4 dual-rank design fits 240-pin slots that require registered memory. It will not work in standard desktop computers.

Straightforward upgrade

Installation is a simple DIMM insertion into a compatible 240-pin slot. The module has no heat spreader, so it fits tight spaces without clearance issues. The main risk is placing it in a system that expects unbuffered memory or a different DDR generation, which will prevent boot. Verify the platform requires registered ECC DDR3 before ordering.

For registered ECC platforms

This module suits administrators extending older DDR3 infrastructure or building cost-effective replacement servers. Buyers needing unbuffered memory, higher capacities per slot, or a newer DDR generation should look elsewhere. Mixing with unbuffered DIMMs is not supported and will cause instability.

Highlights

  • ECC registered design protects data integrity in critical workloads
  • 16GB capacity extends server memory headroom for demanding tasks
  • DDR3 1866 speed with CL13 timing delivers responsive throughput
  • 2Rx4 registered architecture fits compatible workstation and server platforms
  • JEDEC and RoHS compliant build ensures warranty-safe upgrades

Specifications

BrandOWC
Part Number1R8D32R416GB
Capacity16GB
Type240-Pin DDR3 ECC RDIMM
SpeedDDR3 1866 (PC3 14900)
CAS LatencyCL13
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
Heat SpreaderNo

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 verify the 16GB DDR3 1866 CL13 module is running at PC3-14900 speed after installation?

Enter the system BIOS or UEFI and confirm the memory frequency reads 1866MHz with CAS latency 13; the module operates at 1.5V and is JEDEC-standard, so the platform should configure it automatically.

What comes in the box and is anything else required to install this 240-pin ECC registered RDIMM?

The package contains one 16GB 2Rx4 DDR3 1866 CL13 1.5V ECC registered RDIMM; no extra cables, brackets or software are needed, but the host must support registered ECC DDR3 memory.

When should I choose this 16GB 2Rx4 DDR3 1866 CL13 module versus a different capacity or rank?

Select this 16GB 2Rx4 stick when your workstation or server requires registered ECC DDR3 at 1866MHz and you need a single high-density module to fill a 240-pin slot.

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