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MEM-2951-512U1GB
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- 512MB to 1GB DRAM Upgrade (1 1GB DIMM) for Cisco 2951 ISR
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MEM-2951-512U1GB
512MB to 1GB DRAM Upgrade (1 1GB DIMM) for Cisco 2...
$600.00
$240.00
20 in Global Warehouse
$240.00
60% off
TRUSTED, TRIED, PROVEN
MEM-2951-512U1GB Overview
MEM-2951-512U1GB is a high-performance DDR4 UDIMM that runs at 3200 MHz with a tight CAS latency of CL16 and an operating voltage of 1.35V. It is offered as a single channel kit with a module capacity of 512 GB, built using non-ECC and unbuffered technology.
MEM-2951-512U1GB is designed for versatile compatibility across desktop, laptop, and server platforms, and it includes an integrated heatspreader for improved thermal management without RGB lighting. This memory solution is ideally suited for server builds where stability and efficiency are critical.
What is the price of MEM-2951-512U1GB?
Lowest price of MEM-2951-512U1GB is $ 240.00. Shop now! Get further exclusive discounts with bulk quotation on MEM-2951-512U1GB
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MEM-2951-512U1GB Specifications
| Product Type | Computer Memory |
| Memory Type | DDR4 |
| Capacity | 512 GB |
| Compatible Platforms | Desktop / Laptop / Server |
| Compatible Systems | Rack Server / Tower Server / Blade Server / Workstation / 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 | No |
| RGB Lighting | No |
| Heatsink / Heatspreader | Yes |
| Intel Platform Support | Intel 13th Gen |
| AMD Platform Support | AMD Ryzen 5000 |
| Use Case | Server |
| Product Name | MEM-2951-512U1GB |
| Height | 1.18 inches |
| Width | 5.25 inches |
| Depth | 0.36 inches |
| Weight | 0.3 lbs |
MEM-2951-512U1GB Use Case
Enhanced VPN Throughput for Secure Branch Office Connectivity
In a multi‐site enterprise deploying hundreds of IPsec VPN tunnels on Cisco 2951 ISR routers, the MEM-2951-512U1GB-512MB to 1GB DRAM Upgrade (1 1GB DIMM) delivers the extra memory headroom needed for concurrent encryption, decryption and packet buffering. By upgrading to 1 GB of DRAM, network teams can sustain 200+ VPN sessions at wire-rate performance, reduce packet drops under peak loads and simplify compliance with PCI DSS and HIPAA encryption mandates. Outcome: Secure, high-performance branch connectivity with sub-millisecond latency and zero session failures.
Scalable Unified Communications and Video Collaboration
A regional service provider hosting Cisco Unified Communications Manager (CUCM) clusters at branch sites leverages Cisco 2951 ISR with MEM-2951-512U1GB-512MB to 1GB DRAM Upgrade to support up to 1,000 SIP registrations and 200 simultaneous video streams per router. The DRAM upgrade enables advanced call control features, transcoding and QoS policy enforcement in hardware, avoiding CPU bottlenecks. Outcome: Seamless HD voice/video calls, accelerated feature rollout and 30% reduction in call setup times—boosting productivity and customer satisfaction.
Optimized SD-WAN and Cloud Application Acceleration
In a distributed enterprise migrating critical workloads to AWS and Azure, IT architects deploy Cisco 2951 ISR as SD-WAN edge devices. The MEM-2951-512U1GB-512MB to 1GB DRAM Upgrade unlocks deep packet inspection, application-aware routing and dynamic path selection across multiple links. With increased memory buffers, the router sustains thousands of simultaneous TCP/UDP flows and accelerates SaaS traffic via Cloud OnRamp. Outcome: 40% improvement in cloud app response times, consistent user experience and lower WAN costs through intelligent path utilization.
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 | AMD Ryzen 5000 | AMD EPYC | AMD Ryzen 5000 | AMD Ryzen 5000 |
| Capacity | 2 GB | 512 GB | 512 GB | 512 GB | 512 GB |
| CAS Latency (CL) | CL16 | CL16 | CL16 | CL16 | CL16 |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop / Server | Desktop / Laptop / Server | Desktop / Laptop / Server |
| Compatible Systems | N/A | N/A | Rack Server | Workstation | Rack Server / Tower Server / Blade Server / Workstation / N/A |
| Depth | 0.12 inches | 0.6 inches | 0.3 inches | 0.5 inches | 0.36 inches |
| ECC Support | No | No | No | No | No |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | No | Yes | Yes | Yes | Yes |
| Height | 1.18 inches | 1.2 inches | 1.2 inches | 1.4 inches | 1.18 inches |
| Intel Platform Support | Intel 10th Gen | Intel 12th Gen | Intel Xeon Scalable | Intel 13th Gen | Intel 13th Gen |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Operating Temperature | N/A | N/A | N/A | N/A | N/A |
| Product Name | MEM-2900-2GB= | MEM-2951-512U2.5GB | MEM-2900-512U2.5GB | MEM-2951-512U1.5GB Memory Module | MEM-2951-512U1GB |
| 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 | 2933 MHz | 3200 MHz | 3200 MHz | 3200 MHz | 3200 MHz |
| Use Case | General Use | Gaming | Server | Gaming / Workstation / Server | Server |
| Voltage | 1.2V | 1.35V | 1.35V | 1.35V | 1.35V |
| Weight | 0.2 lbs | 0.2 lbs | 0.5 lbs | 0.3 lbs | 0.3 lbs |
| Width | 5.25 inches | 5.3 inches | 5.3 inches | 5.3 inches | 5.25 inches |
| XMP Support | No | Intel XMP 2.0 | No | Intel XMP 2.0 | No |
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Questions & Answers
Q
What is the MEM-2951-512U1GB module?
A
The MEM-2951-512U1GB is a 1GB DRAM upgrade module designed to expand memory from 512MB to 1GB on Cisco 2951 Integrated Services Routers.
Q
Is the MEM-2951-512U1GB compatible with Cisco 2951 ISR?
A
Yes, the MEM-2951-512U1GB is fully compatible with all Cisco 2951 Integrated Services Router models.
Q
What performance benefits does upgrading to 1GB DRAM provide?
A
Upgrading to 1GB DRAM improves routing performance, supports enhanced security features, and enables higher throughput and more concurrent sessions.
Q
How do I install the 1GB DIMM in a Cisco 2951 router?
A
Power off the router, remove the chassis cover, insert the 1GB DIMM into the DRAM slot until it clicks, replace the cover, and power on the router.
Q
Do I need to reboot the router after installing the DRAM module?
A
Yes, you must power cycle the Cisco 2951 router to initialize the new 1GB DRAM during the boot process.
Q
Is this 1GB DIMM ECC or non-ECC memory?
A
The MEM-2951-512U1GB module features error-correcting code (ECC) DRAM for enhanced system reliability and data integrity.
Q
Can I mix the 1GB DIMM with existing memory modules?
A
Cisco recommends using identical DRAM modules; mixing different sizes may result in unsupported configurations or reduced performance.
Q
How can I verify the DRAM upgrade was successful?
A
After reboot, log into the router CLI and enter 'show version' or 'show memory' to confirm the system recognizes 1GB of installed DRAM.
Q
What warranty covers the MEM-2951-512U1GB module?
A
This DRAM upgrade is backed by a one-year limited manufacturer warranty covering defects in materials and workmanship.
Q
Does the DRAM module comply with Cisco’s memory specifications?
A
Yes, the MEM-2951-512U1GB meets Cisco’s specifications for DRAM upgrades on the 2951 ISR platform.
Q
Can I purchase this memory upgrade directly from Cisco?
A
You can order the MEM-2951-512U1GB through authorized Cisco resellers, distributors, or the Cisco online store.
Q
What are the electrical and physical specifications of the DIMM?
A
The module is a 200-pin DDR3 SDRAM DIMM operating at 1.5V with JEDEC standard dimensions for Cisco 2951 routers.
Q
Does installing this module require a specific Cisco IOS image?
A
No, standard Cisco IOS images for the 2951 ISR automatically detect and support the additional 1GB DRAM.
Q
Is the DIMM hot-swappable on Cisco 2951 routers?
A
No, the memory slot on Cisco 2951 ISR requires the router to be powered down before installing or removing the DRAM module.
Q
What does the SKU MEM-2951-512U1GB signify?
A
The SKU indicates a memory upgrade (MEM) for Cisco 2951 routers, expanding capacity from 512MB to a single 1GB DIMM.
Q
How long does shipping typically take for this memory upgrade?
A
Shipping times vary by region; authorized resellers generally ship within 1–3 business days, with standard delivery in 3–7 days.
