HyperX Decoder


The following information is designed to help you identify Kingston® HyperX® memory modules by specification.

  • HX
  • 4
  • 24
  • C
  • 12
  • P
  • B
  • 2
  • K4/
  • 16

HX = Product Line

HX – HyperX

4 = Technology

3 – DDR3
4 – DDR4

24 = Frequency (Mhz)

13 – 1333 16 – 1600
18 – 1866 21 – 2133
24 – 2400 26 – 2666
28 – 2800 30 – 3000

C = DIMM Type


12 = CAS Latency

9 – CL9 10 – CL10
11 – CL11 12 – CL12
13 – CL13 14 – CL14
15 – CL15 16 – CL16

P = Series

S – Savage
B – Beast
P – Predator
I – Impact

B = Heatspreader Color

Blank – Blue
B – Black
R – Red
W – White

2 = Revision

2 – 2nd Revision

K4 = Kit + # of PCS

K2 – Kit of 2 modules
K4 – Kit of 4 modules
K8 – Kit of 8 modules

16 = Total Capacity

8 – 8GB
16 – 16GB
32 – 32GB
64 – 64GB

Total number of memory cells on a module expressed in Megabytes or Gigabytes. For kits, listed capacity is the combined capacity of all modules in the kit.

CAS Latency

One of the most important latency (wait) delays (expressed in clock cycles) when data is accessed on a memory module. Once the data read or write command and the row/column addresses are loaded, CAS Latency represents the final wait time until the data is ready to be read or written.


Third generation of Double Data Rate (DDR) SDRAM memory. Similar to DDR2, it is a continuing evolution of DDR memory technology that delivers higher speeds (up to 1600MHz), lower power consumption and heat dissipation. It is an ideal memory solution for bandwidth hungry systems equipped with dual and quad core processors and the lower power consumption is a perfect match for both server and mobile platforms.

Total Kit

A single package containing multiple memory modules: K2 = 2 modules in a kit.


A memory module containing Register chip(s) used to relay and synchronize address and control signals issued by the motherboard's memory controller, and a Phase Locked Loop (PLL) chip used to relay the motherboard's clock signal to all the DRAM chips.


The data rate or effective clock speed that a memory module supports.


The information below will help illustrate the appropriate settings when adjusting the memory timing's in the motherboard BIOS for optimum performance. Please note that these settings may vary depending on motherboard make/model or BIOS update.



What it does


CAS Latency

Delay between activation of row and reading a row


(or RAS to Column Delay)

Activates row


Row Precharge Delay
(or RAS Precharge Delay)

Deactivates row


Row Active Delay
(or RAS Active Delay, or time to ready)

Number of clock cycles and between activation/deactivation of row

CMD Rate

Command rate

Delay between chip select and command

Notice: All Kingston products are tested to meet our published specifications, Some systems or motherboard configurations may not operate at the published HyperX memory speeds and timing settings. Kingston does not recommend that any user attempt to run their computers faster than the published speed. Overclocking or modifying your system timing may result in damage to computer components.

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