United States$5,000,000+
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Neil Anderson
5
Perfect replacement DIMM for Cisco 2951.
MEM-2951-512MB=
512MB DRAM 1 DIMM FOR CISCO 2951 ISR SPARE
FEATURED DEAL
Name:
MEM-2951-512MB=
- Description:
- 512MB DRAM 1 DIMM FOR CISCO 2951 ISR SPARE
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 654391969141
- Condition:
- Warranty:
- 3
- List Price:
$575.00
- Price:
$210.0063.5% off
Quantity:
1
Business price:
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MEM-2951-512MB= Overview
MEM-2951-512MB= is a high-performance DDR4 UDIMM computer memory module engineered for use in desktop, laptop, and server environments. It delivers reliable speeds of 3200 MHz paired with a CL16 latency and operates at a low 1.2V, making it an ideal solution for workstations and entry-level gaming builds that require both responsive performance and energy efficiency.
MEM-2951-512MB= is configured as a single channel kit with a total capacity of 512 GB, and it features an unbuffered design without ECC support. Built without a heatsink/heatspreader and lacking RGB lighting, this memory module is tailored for systems where streamlined performance and stable operation are paramount, making it a strong candidate for modern workstation and general use builds.
MEM-2951-512MB= price is $210.00, a 63.5% saving from the Cisco list price of $575.00. MEM-2951-512MB= is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-2951-512MB= for additional pricing. Browse the full 2900 Router Memory & Flash series or explore all Cisco products.
MEM-2951-512MB= Specifications
- Height
- 1.2 inches
- Width
- 5.3 inches
- Depth
- 0.5 inches
- Weight
- 0.15 lbs
- Operating Temperature
- N/A
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Compatible Platforms
- Desktop / Laptop / Server
- Compatible Systems
- Workstation
- Form Factor
- UDIMM
- Speed
- 3200 MHz
- Reliability Rating
- Standard
- CAS Latency (CL)
- CL16
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- RGB Lighting
- No
- Kit Configuration
- Single Channel
- Intel Platform Support
- Intel 10th Gen
- AMD Platform Support
- AMD Ryzen 3000
- Voltage
- 1.2V
- XMP Support
- No
- Use Case
- Workstation
- Capacity
- 512 GB
- Heatsink / Heatspreader
- No
- Product Name
- MEM-2951-512MB=
MEM-2951-512MB= Use Case
Rapid DRAM Swap for Zero-Downtime Branch Router Recovery
In a multi-site enterprise, MEM-2951-512MB DRAM 1 DIMM FOR CISCO 2951 ISR SPARE is pre‐staged at each branch office to replace a failed memory module in under 10 minutes, restoring full routing, VoIP and VPN services. This proactive spare strategy ensures sub‐hour MTTR, maintaining business continuity and SLA compliance across distributed locations.
Memory Upgrade to Boost VPN Throughput at Remote Offices
When a financial services firm rolls out encrypted IPSec tunnels from remote locations, installing the MEM-2951-512MB DRAM 1 DIMM on Cisco 2951 ISR routers eliminates memory bottlenecks during peak trading hours. The result is a 40% increase in concurrent VPN sessions and consistent low‐latency performance for mission-critical applications.
High-Availability Spare for Service-Provider Edge Resiliency
A nationwide telecom provider leverages MEM-2951-512MB DRAM 1 DIMM FOR CISCO 2951 ISR SPARE in its edge POPs to ensure immediate recovery from hardware faults without waiting for replacement shipments. By keeping a local inventory of hot-swappable DIMMs, the provider achieves 99.99% network uptime and protects revenue-sensitive customer links.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
 MEM-2951-512MB= |  MEM-2900-1GB= |  MEM-2951-512U2.5GB |  MEM-2951-512U1GB |  MEM-2900-512U1GB | |
|---|---|---|---|---|---|
| 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 | 512 GB |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop | Desktop / Laptop / Server | Desktop / Server |
| Compatible Systems | Workstation | N/A | N/A | Rack Server / Tower Server / Blade Server / Workstation / N/A | N/A |
| 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 | 3200 MHz | 2900 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 | 1.2V | 1.5V | 1.35V | 1.35V | 1.35V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | No | No | Intel XMP 2.0 | No | No |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | No | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel 10th Gen | N/A | Intel 12th Gen | Intel 13th Gen | N/A |
| AMD Platform Support | AMD Ryzen 3000 | N/A | AMD Ryzen 5000 | AMD Ryzen 5000 | N/A |
| Use Case | Workstation | General Use | Gaming | Server | Workstation |
| Product Name | MEM-2951-512MB= | MEM-2900-1GB= | MEM-2951-512U2.5GB | MEM-2951-512U1GB | MEM-2900-512U1GB |
| Height | 1.2 inches | 1.2 inches | 1.2 inches | 1.18 inches | N/A |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | 5.25 inches | N/A |
| Depth | 0.5 inches | 0.2 inches | 0.6 inches | 0.36 inches | N/A |
| Weight | 0.15 lbs | 0.15 lbs | 0.2 lbs | 0.3 lbs | N/A |
Reviews & Ratings
C
Colin Mercer
4
Cisco spare memory worked as expected.
B
Bradley Evans
5
Stable operation after replacement.
R
Ross Cunningham
3
Good option for maintenance stock.
T
Timothy Rhodes
4
No compatibility issues encountered.
Questions & Answers
What is the capacity of the MEM-2951-512MB= module?
The MEM-2951-512MB= provides 512 MB of DRAM in a single DIMM configuration for Cisco 2951 ISR routers.
Which Cisco router model is the MEM-2951-512MB= compatible with?
This 512 MB DRAM DIMM is certified and optimized for the Cisco 2951 Integrated Services Router (ISR).
What type of memory technology does the MEM-2951-512MB= use?
The module utilizes DDR3 ECC DRAM, ensuring error correction and reliable performance under heavy network loads.
Can I install the MEM-2951-512MB= myself?
Yes. The module is hot-pluggable and designed for tool-free installation; simply power down the router following Cisco’s guidelines and insert the DIMM into an available slot.