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Two green DDR4 DIMM sticks, no heat spreader, 288-pin

Computer Memory Solutions

Computer Memory Solutions 8GB (2x4GB) DDR4 2133MHz CL15 Non-ECC DIMM memory upgrade

SKU CH-R56K-9BS1G

8GB dual-channel DDR4 kit at 2133 MHz CL15 for Supermicro X11SSL-F, X11SSH-F and X11SSZ-QF servers

  • Total capacity8 GB (2 × 4 GB)
  • Rated speedDDR4 2133 (PC4 17000)
  • ChipsetMajor Brand Chipset
  • CAS latencyCL15
  • Memory timings15-15-15
  • Rated voltage1.2 V
  • 8GB dual-channel kit expands system memory capacity
  • 2133 MHz DDR4 speed matches platform specification
  • CL15 latency with 1.2V operation for efficient performance
  • Validated for Supermicro X11SSL-F, X11SSH-F and X11SSZ-QF systems
  • Two 4GB unbuffered non-ECC DIMMs using major-brand chipset

8GB DDR4 Kit for Supermicro Servers

This two-module kit delivers 8GB of DDR4-2133 memory in a 2x4GB configuration. It is built specifically for Supermicro 5019S-L, X11SSL-F, X11SSH-F and X11SSZ-QF systems. The unbuffered, non-ECC DIMMs suit administrators upgrading compatible Supermicro platforms that accept standard UDIMMs.

64GB System Limit and Speed Behaviour

The supported platforms cap total memory at 64GB across four sockets, so this kit occupies half the available slots. Faster modules will automatically clock down to 2133, 1866 or 1600MHz depending on the processor and population, ensuring stable operation without manual tuning.

Matched Pair for Dual-Channel Operation

The package supplies two identical 4GB sticks tested together, enabling dual-channel bandwidth on the supported boards. Installing matched pairs avoids timing mismatches that can occur when mixing x4 and x8 modules within the same bank, a restriction noted for these platforms.

How it compares

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

Price $42.99
Cheaper than about 79% of the 21,161 comparable items (median $397.99).
Total capacity 8 GB (2 × 4 GB)
Lower than about 80% of the 20,941 comparable items (median 32 GB).
Price per GB $5.37 per GB
Cheaper than about 72% of the 20,941 comparable items (median $8.19 per GB).

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Specifications

Product
Brand nameComputer Memory Solutions
Model nameCM512642133DIMM
Total capacity8 GB (2 × 4 GB)
Product type288-Pin DDR4 SDRAM
Performance
Rated speedDDR4 2133 (PC4 17000)
Processor
ChipsetMajor Brand Chipset
Memory
CAS latencyCL15
Memory timings15-15-15
ECC supportNo
Buffer typeUnbuffered
Memory rank2Rx8
Heat spreaderNo
Power
Rated voltage1.2 V
Compatibility
Compatible systemsSupermicro 5019S-L Super X11SSL-F X11SSH-F X11SSZ-QF
In the box
Included items2 Memory RAM Sticks

Questions about this item

Will these 2133 MHz DDR4 modules run correctly with my existing 1600 MHz or 1866 MHz DDR4 DIMMs in the Supermicro X11SSL-F?

Faster memory clocks down to the optimal speed and voltage for the processor and module count installed, so the 2133 MHz kit will operate at the lower speed of any slower DIMMs already present.

How can I confirm the 8 GB kit is recognised at 2133 MHz with CL15 timing after installation?

Check the BIOS memory information or an OS tool such as dmidecode; it should report 8 GB total, 2133 MT/s data rate and 15-15-15 CAS latency for each 4 GB module.

Does the package contain only the two 4 GB DIMMs or are any cables or brackets included?

The box includes exactly two 288-pin DDR4 UDIMM sticks; no cables, brackets or additional hardware are supplied.

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