United States$5,000,000+
Inventory Delivered By
J
Jason Mullins
4
Major DRAM upgrade significantly improved performance.
MEM-1900-512U2.5GB
Original Stock
Ready to Ship
UPG 512MB TO 2.5GB DRAM 2GB+512MB FOR CISCO 1941 ISR
FEATURED DEAL
Name:
MEM-1900-512U2.5GB
- Description:
- UPG 512MB TO 2.5GB DRAM 2GB+512MB FOR CISCO 1941 ISR
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 818249907017
- Condition:
- Warranty:
- 3
- List Price:
$716.13
- Price:
$186.1974% off
Quantity:
1
Business price:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Shipping:
Payment:
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Shipping:
Payment:
TRUSTED, TRIED, PROVEN
Officially Accredited
& Verified By
Next-Gen IT
Solutions Powered By
MEM-1900-512U2.5GB Overview
MEM-1900-512U2.5GB is a high-performance DDR4 UDIMM memory module designed for demanding desktop and server applications. It operates at a speed of 3200 MHz with a CAS latency of CL16 and a voltage of 1.35V, providing reliable performance for workstation builds that require consistent efficiency and stability. The module comes in a quad-channel kit configuration, is non-ECC and unbuffered, and has been engineered with an integrated heatspreader to optimize thermal management.
Ideal for high-end gaming and professional workstation environments, MEM-1900-512U2.5GB delivers robust capacity in a sleek form factor. With compatibility for both modern Intel (Intel 13th Gen) and AMD (AMD Ryzen 5000) platforms, it ensures versatile deployment in various system builds while offering a streamlined design without RGB lighting for users focused on performance and reliability.
MEM-1900-512U2.5GB price is $186.19, a 74% saving from the Cisco list price of $716.13. MEM-1900-512U2.5GB is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-1900-512U2.5GB for additional pricing. Browse the full 1900 Router Memory & Flash series or explore all Cisco products.
MEM-1900-512U2.5GB Specifications
- Weight
- 0.5 lbs
- Height
- 1.2 inches
- Depth
- 0.8 inches
- Width
- 5.3 inches
- Operating Temperature
- N/A
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Compatible Systems
- Workstation
- Form Factor
- UDIMM
- Speed
- 3200 MHz
- Reliability Rating
- Standard
- CAS Latency (CL)
- CL16
- Voltage
- 1.35V
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- XMP Support
- Intel XMP 2.0
- RGB Lighting
- No
- Heatsink / Heatspreader
- Yes
- AMD Platform Support
- AMD Ryzen 5000
- Compatible Platforms
- Desktop / Server
- Kit Configuration
- Quad Channel
- Use Case
- Workstation
- Capacity
- 512 GB
- Intel Platform Support
- Intel 13th Gen
- Product Name
- MEM-1900-512U2.5GB
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MEM-1900-512U2.5GB |  MEM-1900-512MB |  MEM-1900-1GB |  MEM-1900-512U1.5GB |  MEM-1900-1GB= | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 512 GB | 512 GB | 1 GB | 512 GB | 1GB |
| Compatible Platforms | Desktop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server | Desktop | Desktop / Laptop / Server |
| Compatible Systems | Workstation | Workstation | N/A | N/A | N/A |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Quad Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 3200 MHz | 2133 MHz | 1600 MHz | 3200 MHz | 1600 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| CAS Latency (CL) | CL16 | CL15 | CL16 | CL16 | CL16 |
| Voltage | 1.35V | 1.2V | 1.2V | 1.5V | 1.2V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | Intel XMP 2.0 | Intel XMP 2.0 | No | No | No |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | No | Yes | Yes |
| Intel Platform Support | Intel 13th Gen | Intel 12th Gen | N/A | N/A | N/A |
| AMD Platform Support | AMD Ryzen 5000 | AMD Ryzen 5000 | N/A | N/A | N/A |
| Use Case | Workstation | Gaming | General Use | Gaming | General Use |
| Product Name | MEM-1900-512U2.5GB | MEM-1900-512MB | MEM-1900-1GB | MEM-1900-512U1.5GB | MEM-1900-1GB= |
| Height | 1.2 inches | 1.4 inches | N/A | N/A | 1.4 inches |
| Width | 5.3 inches | 5.3 inches | N/A | N/A | 5 inches |
| Depth | 0.8 inches | 0.3 inches | N/A | N/A | 0.5 inches |
| Weight | 0.5 lbs | 0.3 lbs | N/A | N/A | 0.15 lbs |
Reviews & Ratings
N
Noah Prescott
4
Router handled more services without slowdown.
L
Luke Harrington
4
Cisco memory delivered reliable results.
C
Caleb Winters
5
Excellent upgrade for expanding capabilities.
A
Andrew Wallace
4
Stable and error free since installation.
Questions & Answers
What does the MEM-1900-512U2.5GB upgrade include?
It includes a 512MB to 2.5GB (2GB+512MB) Cisco-certified DRAM module for Cisco 1941 ISR routers.
Which Cisco routers support MEM-1900-512U2.5GB?
The module is compatible exclusively with Cisco 1941 Integrated Services Routers (ISR).
How much memory does the upgrade provide?
It expands your ISR 1941 memory by 2.5GB (2GB plus an additional 512MB).
Is MEM-1900-512U2.5GB genuine Cisco hardware?
Yes, it is a genuine Cisco-manufactured DRAM upgrade backed by Cisco certification.
What type of memory is used in MEM-1900-512U2.5GB?
The module uses high-performance, ECC DDR3 DRAM optimized for Cisco 1941 routers.
How do I install the MEM-1900-512U2.5GB module?
Power off the ISR 1941, remove the existing DRAM, insert the new module, and restart the router.
Do I need CLI configuration after installing the upgrade?
No CLI changes are required; the ISR 1941 automatically recognizes and utilizes the new memory.
Will the upgrade improve my router's performance?
Yes, increased DRAM enhances throughput, supports more processes, and improves overall ISR stability.
Does the MEM-1900-512U2.5GB come with a warranty?
It carries Cisco’s standard limited lifetime warranty and is eligible for Cisco technical support.
Can I mix this module with existing Cisco memory?
Mixing is not recommended; use this single DRAM module to ensure optimal performance and compatibility.
What are the physical dimensions of the module?
The module measures 67.6mm x 30mm, fitting standard DRAM slots in the Cisco 1941 ISR chassis.
What is the operating temperature range?
It operates between 0°C to 45°C, matching the Cisco 1941 ISR environmental specifications.
Is this module ECC or non-ECC memory?
It is ECC (Error-Correcting Code) DRAM designed to detect and correct single-bit errors.
How do I verify the memory upgrade after installation?
Use the 'show version' or 'show platform hardware qfp active feature' commands in the ISR CLI.
Can this upgrade be returned if not needed?
Yes, it is refundable within 30 days of purchase, subject to Cisco’s return material authorization policy.
Where can I purchase the MEM-1900-512U2.5GB module?
You can buy it from Cisco-authorized resellers or the official Cisco online store.
Why should I choose this upgrade for my Cisco 1941 ISR?
It offers reliable Cisco-certified DRAM expansion, improves router performance, and ensures full support.