United States$5,000,000+
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E
Ethan Collins
5
Memory upgrade significantly boosted ISR 2951 capacity.
MEM-2951-512U2.5GB
512MB to 2.5GB DRAM Upgrade (2GB+512MB) for Cisco 2951 ISR
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Name:
MEM-2951-512U2.5GB
- Description:
- 512MB to 2.5GB DRAM Upgrade (2GB+512MB) for Cisco 2951 ISR
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- Condition:
- Warranty:
- 3
- List Price:
$750.00
- Price:
$361.0051.9% off
Quantity:
1
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MEM-2951-512U2.5GB Overview
MEM-2951-512U2.5GB is a high-performance DDR4 UDIMM memory module designed to deliver fast and reliable performance with a speed of 3200 MHz and a CAS latency of CL16. Manufactured to operate at 1.35V, this module offers a substantial capacity of 512 GB configured as a single channel kit, ensuring robust support for demanding desktop environments.
Engineered without ECC and utilizing an unbuffered architecture, MEM-2951-512U2.5GB is optimized for desktop builds that require efficient thermal management, thanks to its integrated heatspreader. It does not feature RGB lighting, making it ideal for gaming-oriented systems as well as high-performance workstations where stability and streamlined design are a priority.
MEM-2951-512U2.5GB price is $361.00, a 51.9% saving from the Cisco list price of $750.00. MEM-2951-512U2.5GB is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-2951-512U2.5GB for additional pricing. Browse the full 2900 Router Memory & Flash series or explore all Cisco products.
MEM-2951-512U2.5GB Specifications
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Capacity
- 512 GB
- Compatible Platforms
- Desktop
- Compatible Systems
- N/A
- Form Factor
- UDIMM
- Kit Configuration
- Single Channel
- Speed
- 3200 MHz
- Operating Temperature
- N/A
- 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
- Intel Platform Support
- Intel 12th Gen
- AMD Platform Support
- AMD Ryzen 5000
- Use Case
- Gaming
- Product Name
- MEM-2951-512U2.5GB
- Height
- 1.2 inches
- Width
- 5.3 inches
- Depth
- 0.6 inches
- Weight
- 0.2 lbs
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 MEM-2951-512U2.5GB |  MEM-2900-1GB= |  MEM-2951-512U1.5GB |  MEM-2900-512U1GB |  MEM-2951-512U4GB | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR3 | DDR4 | DDR4 | DDR4 |
| Capacity | 512 GB | 1 GB | 512 GB | 512 GB | 4 GB |
| Compatible Platforms | Desktop | Desktop | Desktop / Laptop / Server | Desktop / Server | Desktop / Laptop / Server |
| Compatible Systems | N/A | N/A | Workstation | N/A | Workstation |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 3200 MHz | 1600 MHz | 3200 MHz | 2900 MHz | 3200 MHz |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| CAS Latency (CL) | CL16 | CL11 | CL16 | CL16 | CL16 |
| Voltage | 1.35V | 1.5V | 1.35V | 1.35V | 1.35V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | Intel XMP 2.0 | No | Intel XMP 2.0 | No | Intel XMP 2.0 |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel 12th Gen | N/A | Intel 13th Gen | N/A | Intel 10th Gen |
| AMD Platform Support | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 |
| Use Case | Gaming | General Use | Gaming / Workstation / Server | Workstation | Gaming / Workstation |
| Product Name | MEM-2951-512U2.5GB | MEM-2900-1GB= | MEM-2951-512U1.5GB Memory Module | MEM-2900-512U1GB | MEM-2951-512U4GB |
| Height | 1.2 inches | 1.2 inches | 1.4 inches | N/A | 1.2 inches |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | N/A | 5.3 inches |
| Depth | 0.6 inches | 0.2 inches | 0.5 inches | N/A | 0.5 inches |
| Weight | 0.2 lbs | 0.15 lbs | 0.3 lbs | N/A | 0.3 lbs |
Reviews & Ratings
M
Marcus Fielding
4
Cisco certified kit ensured compatibility.
J
Julian Mercer
5
Better performance after upgrade.
P
Patrick Doyle
3
Reliable upgrade for branch deployments.
S
Samuel Brooks
4
Consistent results in production use.
Questions & Answers
What is the MEM-2951-512U2.5GB DRAM upgrade for Cisco 2951 ISR?
The MEM-2951-512U2.5GB is a certified DRAM upgrade kit that expands your Cisco 2951 ISR’s memory from 512 MB to 2.5 GB, ensuring higher throughput and improved performance for complex routing tasks.
Is the MEM-2951-512U2.5GB upgrade fully compatible with Cisco 2951 routers?
Yes. This DRAM kit is specifically designed, tested, and validated by Cisco for seamless compatibility with the Cisco 2951 ISR platform.
How does increasing DRAM to 2.5 GB benefit my Cisco 2951 ISR?
Upgrading to 2.5 GB DRAM allows higher concurrency, smoother VPN and firewall operations, and support for advanced features such as full MPLS and multiple service modules without memory bottlenecks.
What performance improvements can I expect after the memory upgrade?
You can expect up to 40 % faster packet processing, reduced latency on encrypted sessions, and the ability to run additional services like Cisco Application Experience on your 2951 ISR.