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
Four green DDR3 DIMM sticks with gold contacts

Computer Memory Solutions

Computer Memory Solutions 16GB (4x4GB) DDR3 1333 ECC Registered DIMM Kit B128

SKU CH-RGZC-86G01

16 GB kit of four 4 GB DDR3 1333 ECC registered DIMMs for Supermicro X8 series motherboards

  • Capacity16GB (4 x 4GB)
  • Type240-Pin DDR3 SDRAM
  • SpeedDDR3 1333 (PC3 10600)
  • CAS LatencyCL9
  • Timing9-9-9
  • Voltage1.5V
  • 16 GB kit expands server capacity to the board limit
  • ECC registered design protects data integrity in critical workloads
  • DDR3-1333 CL9 timing matches Supermicro X8 specifications
  • 240-pin DIMM form factor fits the six registered slots
  • 5 V operation aligns with platform voltage requirements

Server-grade ECC registered kit

This 16 GB kit contains four 4 GB DDR3 registered DIMMs that run at 1333 MHz with CL9 timing and 1.5 V operation. Each module is dual-rank 2Rx4 and includes ECC for data-integrity protection in server workloads.

Suited for Supermicro X8 platforms

The memory is validated for Supermicro X8Sit-Hf, X8Siu-F and X8Sia-F motherboards that accept registered ECC DIMMs. Systems requiring unbuffered ECC UDIMMs, non-ECC modules or higher-speed DDR3 will not be compatible with this kit.

Capacity ceiling and headroom

The four-module kit populates four of the six available DIMM slots and delivers 16 GB total, leaving two slots free for expansion. The platform supports up to 32 GB of registered ECC memory, so the kit provides half the maximum registered capacity.

Highlights

  • 16 GB kit expands server capacity to the board limit
  • ECC registered design protects data integrity in critical workloads
  • DDR3-1333 CL9 timing matches Supermicro X8 specifications
  • 240-pin DIMM form factor fits the six registered slots
  • 5 V operation aligns with platform voltage requirements

Specifications

BrandComputer Memory Solutions
ModelCM5127210600ECCR2R4H
Capacity16GB (4 x 4GB)
Type240-Pin DDR3 SDRAM
SpeedDDR3 1333 (PC3 10600)
CAS LatencyCL9
Timing9-9-9
Voltage1.5V
ECCYes
Buffered/RegisteredRegistered
Rank2Rx4
ChipsetMajor Brand Chipset
Heat SpreaderBased on Current Inventory (If Required Please Contact)
Compatible SystemSupermicro X8Sit-Hf, X8Siu-F, X8Sia-F Motherboard
Package Content4 Memory RAM Sticks

Questions about this item

Does my Supermicro motherboard need to support registered ECC DDR3 memory for this kit to work?

Yes — the modules are 240-pin DDR3 1333 registered ECC DIMMs, so the board must accept registered ECC memory at that speed.

Can I mix these registered DIMMs with the unbuffered ECC UDIMMs already installed in my X8SIT-HF?

No — the board supports either 16 GB of ECC UDIMMs or 32 GB of registered ECC RDIMMs, but the two types cannot be mixed in the same system.

How can I confirm the kit is running at the correct 1333 MHz speed and CL9 timings after installation?

Check the BIOS memory information or a system utility such as CPU-Z; it should report DDR3-1333 (PC3-10600) with 9-9-9 timings at 1.5 V.

Also in this aisle

People compared these

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