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4GB RAM Replacement for Kingston KVR21S15S6/4 | DDR4 2133MHz PC4-17000 SODIMM 1Rx16 Laptop Memory
- 4GB ( 1x 4GB Module ) | DDR4 2133 MHz ( PC4-17000 ) | DDR4 SODIMM ( 260-Pin ) | Non-ECC SODIMM ( Unbuffered SO-DIMM ) | 1.2V - DDR4 Standard Voltage
- Compatible Equivalent for Kingston KVR21S15S6/4
- High performance Memory RAM upgrade designed for Laptop/Notebook/All-in-One Computer Systems
- All modules undergo quality assurance testing to ensure dependable and reliable performance | Please verify the supported memory (RAM) specifications of your system prior to purchase to ensure compatibility
- A-Tech provides a Lifetime Warranty for all orders & offers complimentary United States based Tech Support before, during, & after your purchase
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Overview
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An A-Tech Memory (RAM) upgrade is an easy, quick way to boost your system's performance by speeding up loading times, improving system responsiveness, and increasing your system's ability to handle higher workloads. Take on more and multitask with ease with a simple and affordable A-Tech Memory upgrade!
Compatible Memory Module Replacement for Kingston:
KVR21S15S6/4
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR4
Form Factor: SO-DIMM ( 260 Pin )
Speed: DDR4 2133 MHz ( PC4-17000 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Compatible Memory Module Replacement for Kingston:
KVR21S15S6/4
Memory Specs
Memory Size: 4 GB ( 1 x 4 GB Module )
Memory Type: DDR4
Form Factor: SO-DIMM ( 260 Pin )
Speed: DDR4 2133 MHz ( PC4-17000 )
ECC Type: Non-ECC SO-DIMM ( Unbuffered SO-DIMM )
Voltage: 1.2V
Ensured Reliability
All A-Tech Memory products are rigorously tested to ensure that your memory meets our stringent quality and performance standards.
Lifetime Warranty
Purchase with confidence knowing that all A-Tech orders are backed with our Lifetime Warranty.
US Based Technical Support
Need help? Have questions? Our 5 star United States based support team is here to help before, during, and after your purchase to make sure you are completely satisfied with your A-Tech Memory!
Warranty & Returns
Warranty, Returns, And Additional Information
Warranty
- Please contact the Seller directly for warranty information. Warranty information may also be found on the Manufacturer's website.
- CONTACT
Return Policies
- Return for refund within: 30 days
- Return for replacement within: 30 days
- This item is covered by A-Tech Return Policy
Manufacturer Contact Info
- For a directory of all our manufacturers, please click below.
- Manufacturers Directory
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A-Tech 4GB DDR4-2133 laptop memory is a 260-pin, 1.2V, non-ECC unbuffered SO-DIMM designed as an equivalent replacement for Kingston KVR21S15S6/4, for laptop, notebook, and all-in-one owners whose systems support these specifications.
Recommended For
- Owners of a compatible DDR4 laptop replacing a failed or missing 4GB module who need to restore the system to its previous memory capacity.
- Owners of a compatible laptop with 4GB installed and an available memory slot who want to add this module for an 8GB total suited to basic browsing, documents, and a few low-intensity apps.
- People maintaining an older, compatible laptop for light use—such as email, simple documents, or occasional media streaming—who need a low-capacity replacement or addition rather than a major performance upgrade.
Real-World Use Scenarios
- For a compatible laptop with an empty memory slot and 4GB already installed, adding this module can bring the system to 8GB, giving more room for several browser tabs and everyday apps to stay open together.
- In a compatible laptop with 4GB total memory, this module can support basic web browsing, document work, or online video streaming; heavier multitasking may still feel constrained.
- When a compatible laptop’s existing memory module has failed or been removed, using this 4GB replacement can restore memory capacity for everyday use, provided the laptop supports this module type and capacity.
- For a supported Windows 11 laptop that otherwise meets the requirements, installing this module may help bring system memory up to Windows 11’s 4GB minimum; meeting the memory minimum alone does not establish full upgrade eligibility.
Spec Summary
| Attribute | Value |
|---|---|
| Best For | Laptop and notebook memory upgrades for compatible AMD- or Intel-based systems |
| Capacity | 4GB |
| Memory Type And Form Factor | 260-pin DDR4 SO-DIMM |
| Speed And Latency | DDR4 2133 (PC4-17000), CL15 |
| Voltage And Error Correction | 1.20V, non-ECC, unbuffered |
| Module Features | Major Brand Chips |
| Brand | A-Tech |