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Patriot Viper Steel Series 16GB (2x8GB) 4000MHz DDR4 Memory Kit

Patriot Viper Steel Series 16GB (2x8GB) 4000MHz DDR4 Memory Kit

CCL Code: RAM3962

£97.74 inc VAT

Patriot Viper Steel Series 16GB (2x8GB) 4000MHz DDR4 Memory Kit


£97.74 inc VAT

Available for delivery from Saturday 4th February

Buying in bulk? Contact our business team.

Key Features:

  • Voltage: 1.35V
  • Latency Timing: CL19
  • Speed: 4000MHz (PC4-32000)
  • 2 x 8GB DIMM Dual Channel Kit
  • Intel XMP Profile Support
  • non-ECC Unbuffered Memory
CCL Code: RAM3962

Patriot Memory’s Viper Steel memory modules are  designed with true performance in mind.  Built for the  latest Intel® and AMD™ platforms, the Viper Steel series provides the best performance and stability for the most demanding computer environments.

The Viper Steel utilizes a custom designed high performance aluminum heat shield for a clean sleek steel-look inside any motherboard. The Viper Steel is made to ensure rock solid performance even when using the most taxing applications. Built from the highest quality Build of Materials, Patriot’s Viper Steel Series memory modules are hand tested and validated for system compatibility.

Patriot’s Viper Steel Series will be offered at speeds from 3000MHz up to 4400MHz with XMP 2.0 support. Hand tested for quality assurance the Viper Steel series is backed by a limited lifetime warranty.

Main Features

  • Series: Viper Steel
  • Edition: Gunmetal Frey sides with diamond cutting Viper logo / Black top
  • Aluminium heat spreader with unique and specific design element
  • Compatability: Tested on the latest Intel premium/high-end paltforms and i7 CPU's
  • Limited lifetime warranty


Memory Size 16 GB
Memory Type DDR4
Memory Speed 4000MHz
Designation PC4-32000
Memory Size (Total) 16GB
Number of Modules 2
Memory Size (Individual) 8GB
Pin Configuration 288-Pin
Chip Technology NON-ECC Unbuffered DIMM
CAS Latency CL19-19-19-39


Voltage 1.35 v


Colour Black
Width 1.75"
Depth 0.28"
Height 5.34"
Weight 96gm


Warranty Limited Lifetime

Key Features

Memory Package DIMM
Individual Module Size 8192 MB
Main Colour Grey
Memory Modules Kit Size 2
Memory Standard PC4-32000
Memory CAS 19
Memory Voltage 1.4 V
Memory ECC No
Memory Buffered No
XMP Support Yes

Item Details

Manufacturer Patriot
Manufacturer Code PVS416G400C9K
EAN 0814914025086
Condition New

Warranty Information

Warranty Limited Lifetime

Manufacturer Information

Manufacturer Patriot
Manufacturer Code PVS416G400C9K

Do you have you a question about the Patriot Viper Steel Series DDR4 16GB (2 x 8GB) 4000MHz Kit w/Gunmetal Grey heatshield?

Q: do the rams work with amd ryzen pro 4650g
Answer by Website User on 2nd June 2021
This would work, though, personally I would suggest going slower at 3600mhz to stop the CPU splitting the memory controller. - Kristian N
0 customers found this answer helpful.
Post Answer
Q: Hi Is this kit AMD Ryzen compatible? I currently have a Ryzen5 2600 on an MSI B450 Pro VDH v2.
Answer by Website User on 2nd July 2019
These are compatible with Ryzen CPU's - Kristian N
0 customers found this answer helpful.
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Q: Isn't the CL15 in the featured specs for base timings and not at 4000mhz ie, 2133mhz CL15 and 4000mhz CL19? If so it would be nice to see this ammended to avoid further confusion. Thanks
Answer by Website User on 19th June 2019
I can confirm this is CL19.
0 customers found this answer helpful.
Post Answer
4.6 / 5 7 reviews


7 months ago

Great performance and a great price

Adam Lesiak

January 2021

Absolutely amazing RAM. XMP profile ran smoothly with i5 10600K. Until one module died out of nowhere only after 3 months...

Ryan Grange

September 2020

Works perfectly

Mark Cook

April 2020

Pricey but probably worth it


February 2020

to notch peice of p.c hardware. reliable and excels performance, a must for gaming. excellent buy. well worth the money. 12/10.


February 2020

Running smooth and fast with my I9 9900k, sits on Z390 Aorus Ultra. XMP set at 4000Mhz with no problem at all. Recommend.


January 2020

Minor buyers remorse, slightly slower memory costs half as much, but 4000 rated does mean I can configure the Infinity Fabric to be synchronous with RAM.

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