Features: HyperX HX421C14FB/4 is a 512M x 64-bit (4GB) DDR4-2133 CL14 SDRAM (Synchronous DRAM) 1Rx8, memory module, based on eight 512M x 8-bit FBGA components per module. Each module kit supports Intel Extreme Memory Profiles (Intel XMP) 2.0. Each module has been tested to run at DDR4-2133 at a low latency timing of 14-14-14 at 1.2V. Additional timing parameters are shown in the Plug-N-Play (PnP) Timing Parameters section below. The JEDEC standard electrical and mechanical specifications are as follows:

Note:
The PnP feature offers a range of speed and timing options to support the widest variety of processors and chipsets. Your maximum speed will be determined by your BIOS.

JEDEC/XMP TIMING PARAMETERS
JEDEC/PnP: DDR4-2133 CL14-14-14 @1.2V
XMP Profile #1: DDR4-2133 CL14-14-14 @1.2V

FEATURES

Power Supply: VDD = 1.2V Typical
VDDQ = 1.2V Typical
VPP - 2.5V Typical
VDDSPD = 2.2V to 3.6V
Nominal and dynamic on-die termination (ODT) for data, strobe, and mask signals
Low-power auto self refresh (LPASR)
Data bus inversion (DBI) for data bus
On-die VREFDQ generation and calibration
Single-rank
On-board I2 serial presence-detect (SPD) EEPROM
16 internal banks; 4 groups of 4 banks each
Fixed burst chop (BC) of 4 and burst length (BL) of 8 via the mode register set (MRS)
Selectable BC4 or BL8 on-the-fly (OTF)
Fly-by topology
Terminated control command and address bus
Height 1.230" (31.25mm), w/o heatsink

Kingston HyperX FURY Black 4GB 2133MHz DDR4