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MEM-2951-512U2.5GB
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- 512MB to 2.5GB DRAM Upgrade (2GB+512MB) for Cisco 2951 ISR
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MEM-2951-512U2.5GB
512MB to 2.5GB DRAM Upgrade (2GB+512MB) for Cisco...
$361.00
12 in Global Warehouse
$361.00
52% off
TRUSTED, TRIED, PROVEN
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.
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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
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| AMD Platform Support | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 |
| Capacity | 4 GB | 1 GB | 512 GB | 512 GB | 512 GB |
| CAS Latency (CL) | CL16 | CL11 | CL16 | CL16 | CL16 |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop | Desktop / Server | Desktop / Laptop / Server |
| Compatible Systems | Workstation | N/A | N/A | N/A | Workstation |
| Depth | 0.5 inches | 0.2 inches | 0.6 inches | N/A | 0.5 inches |
| ECC Support | No | No | No | No | No |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Height | 1.2 inches | 1.2 inches | 1.2 inches | N/A | 1.4 inches |
| Intel Platform Support | Intel 10th Gen | N/A | Intel 12th Gen | N/A | Intel 13th Gen |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Memory Type | DDR4 | DDR3 | DDR4 | DDR4 | DDR4 |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Product Name | MEM-2951-512U4GB | MEM-2900-1GB= | MEM-2951-512U2.5GB | MEM-2900-512U1GB | MEM-2951-512U1.5GB Memory Module |
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| Reliability Rating | Standard | Standard | Standard | Standard | Standard |
| RGB Lighting | No | No | No | No | No |
| Speed | 3200 MHz | 1600 MHz | 3200 MHz | 2900 MHz | 3200 MHz |
| Use Case | Gaming / Workstation | General Use | Gaming | Workstation | Gaming / Workstation / Server |
| Voltage | 1.35V | 1.5V | 1.35V | 1.35V | 1.35V |
| Weight | 0.3 lbs | 0.15 lbs | 0.2 lbs | N/A | 0.3 lbs |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | N/A | 5.3 inches |
| XMP Support | Intel XMP 2.0 | No | Intel XMP 2.0 | No | Intel XMP 2.0 |
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Questions & Answers
Q
What is the MEM-2951-512U2.5GB DRAM upgrade for Cisco 2951 ISR?
A
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.
Q
Is the MEM-2951-512U2.5GB upgrade fully compatible with Cisco 2951 routers?
A
Yes. This DRAM kit is specifically designed, tested, and validated by Cisco for seamless compatibility with the Cisco 2951 ISR platform.
Q
How does increasing DRAM to 2.5 GB benefit my Cisco 2951 ISR?
A
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.
Q
What performance improvements can I expect after the memory upgrade?
A
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.
Q
How do I install the MEM-2951-512U2.5GB DRAM upgrade?
A
Power down the router, open the chassis cover, remove the existing 512 MB module, insert the new 2 GB and 512 MB modules in the memory slots, then close the cover and power up. Follow Cisco’s hardware installation guide for step-by-step instructions.
Q
Do I need to power off my router to install the DRAM upgrade?
A
Yes. Always power down and disconnect the Cisco 2951 ISR from its power source before installing or removing any memory modules to prevent hardware damage.
Q
Will this upgrade affect my Cisco warranty or service contract?
A
No. Using Cisco-certified DRAM modules like MEM-2951-512U2.5GB maintains your existing Cisco warranty and service support without voiding coverage.
Q
Which Cisco IOS versions support 2.5 GB DRAM on the 2951 ISR?
A
Cisco IOS 15.x and later releases for the 2951 ISR fully support 2.5 GB of DRAM. Verify compatibility by checking Cisco’s software release notes for your specific IOS version.
Q
How do I verify the new memory after installation?
A
After reboot, enter the CLI command “show platform hardware qfp active feature” or “show memory summary.” You should see a total of 2560 MB (2.5 GB) of installed RAM.
Q
Are there any prerequisites before installing the DRAM upgrade?
A
Ensure the router is running a supported IOS release, has a valid service contract, and is powered off. Backup your configuration as a precaution before hardware installation.
Q
Does the memory upgrade require a BIOS or microcode update?
A
No BIOS or microcode update is required. The Cisco 2951 ISR automatically detects and utilizes the new DRAM modules on boot.
Q
How does the 2.5 GB DRAM upgrade impact power consumption and heat?
A
The upgrade adds minimal additional power draw (under 3 W) and remains within the router’s thermal specifications. Cisco’s chassis cooling system handles the slight increase in heat.
Q
What is the lead time and shipping policy for MEM-2951-512U2.5GB?
A
Typical lead time is 1–3 business days from order confirmation. We offer expedited shipping options and full tracking for on-time delivery.
Q
What is your return and RMA policy for the memory upgrade?
A
We provide a 30-day satisfaction guarantee and full RMA support for defective modules. Returns are free, and replacements ship immediately upon RMA approval.
Q
Can I install the DRAM upgrade myself or do I need a technician?
A
The upgrade is user-installable with basic hardware skills. Follow the provided Cisco installation guide, or contact a certified technician if you prefer professional support.
Q
What should I do if the router does not recognize the new memory?
A
First, reseat the modules and verify proper slot placement. If the issue persists, update to the latest supported IOS and contact Cisco support with module serial numbers for further diagnostics.