G.Skill
G.Skill F4-2666C19S-8GVR RipJaws V 8GB DDR4 2666MHz RAM
8GB DDR4
Plug-in DDR4-2666 performance at 1.2V gives budget and mid-range desktop builds a reliable, no-fuss memory foundation.
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Overview
Key Features
Ripjaws V Series, designed specifically for AMD Ryzen and Intel Core processors
1 x 8GB module, DDR4-2666, 288-Pin, CAS Latency CL19 (19-19-19-43) at 1.20V
Brand: G.SKILL, Series: RipJaws V Series, Model: F4-2666C19S-8GVR
ECC: No, Dual Channel Kit, Recommended Use: High Performance or Gaming Memory
Rated SPD frequency requires compatible CPU and chipset support
Specifications
Brand
G.Skill
Model
F4-2666C19S-8GVR
Capacity
8GB (1 x 8GB)
Type
288-Pin DDR4 SDRAM U-DIMM
Speed
DDR4-2666 (PC4-21300)
CAS Latency
CL19-19-19-43
Voltage
1.20V
ECC
Non-ECC
Channel
Single Module (Dual Channel with matched pair)
ASIN
B07R2KB3LG
Frequently Asked Questions
Will this 8GB module work with my existing RAM stick, or do I need to replace both slots?
G.Skill explicitly warns against mixing memory kits. This is a single 8GB module sold as a standalone kit — if you add it alongside a different kit or different-spec stick, you risk stability issues or boot failure. For dual-channel operation, pair it with an identical F4-2666C19S-8GVR module in the appropriate slots per your motherboard manual.
Does this RAM run at DDR4-2666 automatically out of the box?
It includes a JEDEC default profile, meaning most systems will boot it at a conservative JEDEC speed (often DDR4-2133 or DDR4-2400) at default BIOS settings. To reach the rated DDR4-2666 CL19-19-19-43 speed, you'll need to enable XMP in your BIOS — a one-time toggle on any XMP-compatible board.
What platforms and socket types is this compatible with?
This is a 288-pin DDR4 U-DIMM, compatible with Intel LGA 115x/1200/1700 and AMD AM4/AM5 platforms that support DDR4. For confirmed compatibility with your specific motherboard, G.Skill's online QVL and RAM Configurator tool is the authoritative reference.
Is CL19 latency a bottleneck compared to faster kits?
At DDR4-2666, CL19 translates to roughly 14.3ns of true latency — adequate for general computing, gaming, and productivity. Tighter-latency kits (CL14-16 at higher frequencies) will show measurable gains in latency-sensitive workloads like competitive gaming or large dataset processing, but the real-world difference in most use cases is modest.
What voltage does this module run at, and is it safe for daily use?
This module operates at 1.20V, which is the JEDEC-standard DDR4 voltage. It runs within Intel and AMD spec sheets without placing additional thermal stress on the memory controller or IMC.
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