DDR4 | 4GB | Number of modules 1 | 2400 MHz | 260-pin SO DIMM | CL 17

ValueRAM's 1G x 64-bit (8GB) DDR4-2400 CL17 SDRAM (Synchronous DRAM), 1Rx8, non-ECC, memory module, based on eight 1G x 8-bit FBGA components. The SPD is programmed to JEDEC standard latency DDR4-2400 timing of 17-17-17 at 1.2V. This 260-pin DIMM uses gold contact fingers. 

HyperX HX424S14IB2/8 is a 1G x 64-bit (8GB) DDR4-2400 CL14
SDRAM (Synchronous DRAM) 1Rx8, memory module, based on
eight 1G x 8-bit DDR4 FBGA components. Each module
supports Intel® Extreme Memory Profiles (Intel® XMP) 2.0.
This module has been tested to run at DDR4-2400 at a low
latency timing of 14-14-14 at 1.2V. Additional timing parameters
are shown in the PnP Timing Parameters section below

HyperX HX426S15IB2/8 is a 1G x 64-bit (8GB) DDR4-2666 CL15
SDRAM (Synchronous DRAM) 1Rx8, memory module, based on
eight 1G x 8-bit DDR4 FBGA components. Each module
supports Intel® Extreme Memory Profiles (Intel® XMP) 2.0. This
module has been tested to run at DDR4-2666 at a low latency
timing of 15-17-17 at 1.2V. Additional timing parameters are
shown in the PnP Timing Parameters section below

8GB 1Rx16 1G x 64-Bit PC4-3200
CL22 260-Pin SODIMM

Patriot’s Signature Line memory delivers the quality, reliability and performance expected for today’s mainstream computer needs. This DRAM is built for better overall system responsiveness when using demanding application. Built using the highest quality components and hand tested, Patriot ensures every module meets and exceeds industry standards to offer you a hassle-free plug-and-play memory upgrade. With free customer service and a lifetime warranty, Patriot’s Signature Line DDR4 memory modules are the perfect option for any PC system build or upgrade for faster performance.

HyperX HX424S14IB/4 is a 512M x 64-bit (4GB) DDR4-2400 CL14
SDRAM (Synchronous DRAM) 1Rx8, memory module, based on
eight 512M x 8-bit DDR4 FBGA components. Each module
supports Intel® Extreme Memory Profiles (Intel® XMP) 2.0. This
module has been tested to run at DDR4-2400 at a low latency
timing of 14-14-14 at 1.2V. Additional timing parameters are
shown in the PnP Timing Parameters section below

8GB 1Rx16 1G x 64-Bit PC4-2666
CL19 260-Pin SODIMM

Viper Steel DDR4 8GB 3000MHz CL18 SODIMM Single
Patriot ’s Viper Steel SODIMM deliver cutting-edge performance for notebooks and small form-factor PC‘s without sacrificing reliability. Built for the latest Intel® and AMD™ platforms, Viper Steel SODIMM provides the best performance and stability for the most demanding computer environments. Made to ensure rock-solid and easy-to-use plug and play performance, even for the most demanding games and applications. Built from the highest quality build of materials, Patriot’s Viper Steel SODIMM memory modules are hand-tested and validated for system compatibility. Patriot’s Viper Steel SODIMM Series will be offered at speeds from 2400MHz up to 3000MHz with XMP 2.0 support. Hand-tested for quality assurance the Viper Steel SODIMM series is backed by a limited lifetime warranty. Easily upgrade, load files faster, and increase responsiveness to improve your system with Viper Steel SODIMM modules.

Patriot Signature Line DDR4 4GB (1 x 4GB) 2666MHz SODIMM

Crucial 4GB DDR4 2666 MHz Memory Module

8GB, 204-pin SODIMM, DDR3 PC3-12800 memory module

Crucial 8GB DDR4-2666 SODIMM