United States$5,000,000+
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Neil Anderson
5
Higher DRAM capacity handled heavier workloads smoothly.
MEM-1900-2GB
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Cisco Memory MEM-1900-2GB
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Name:
MEM-1900-2GB
- Description:
- Cisco Memory MEM-1900-2GB
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- Brand:
- Cisco
- GTIN:
- 14445527138
- Condition:
- Warranty:
- 3
- List Price:
$803.00
- Price:
$330.0058.9% off
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MEM-1900-2GB Overview
MEM-1900-2GB is a DDR4 UDIMM module clocked at 2133 MHz with a CAS latency of CL15 and an operating voltage of 1.35V. This 2 GB memory module comes in a single-channel kit configuration, is non-ECC and unbuffered, and features a heatspreader for improved thermal performance. It is engineered for broad compatibility across desktop, server, and laptop platforms, making it a versatile choice for various builds.
MEM-1900-2GB is ideally suited for gaming, workstation, and server applications where stable and responsive performance is essential. With its streamlined design and reliable DDR4 technology, this module delivers optimized performance for everyday computing needs and enhances system efficiency without any RGB lighting distractions.
MEM-1900-2GB price is $330.00, a 58.9% saving from the Cisco list price of $803.00. MEM-1900-2GB is in stock and available for next-day dispatch. (terms applied)
Request bulk order quote for MEM-1900-2GB for additional pricing. Browse the full 1900 Router Memory & Flash series or explore all Cisco products.
MEM-1900-2GB Specifications
- Weight
- 0.1 lbs
- Height
- 1.18 inches
- Depth
- 0.12 inches
- Operating Temperature
- N/A
- Product Type
- Computer Memory
- Memory Type
- DDR4
- Compatible Platforms
- Desktop / Laptop / Server
- Compatible Systems
- Workstation
- Form Factor
- UDIMM
- Reliability Rating
- Standard
- Voltage
- 1.35V
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- RGB Lighting
- No
- Heatsink / Heatspreader
- Yes
- Kit Configuration
- Single Channel
- Intel Platform Support
- Intel 10th Gen
- AMD Platform Support
- AMD Ryzen 3000
- Use Case
- Gaming / Workstation / Server
- Width
- 5.25 inches
- XMP Support
- No
- Capacity
- 2 GB
- Speed
- 2133 MHz
- CAS Latency (CL)
- CL15
- Product Name
- MEM-1900-2GB
MEM-1900-2GB Use Case
Scalable Data Center Routing Enhancement
Scenario: In a high-traffic data center core handling 5,000+ BGP routes and multiple VRFs on a Cisco 1900 series router, memory constraints cause slow convergence and packet drops under peak load. By installing MEM-1900-2GB-Cisco Memory MEM-1900-2GB, engineers eliminate RAM bottlenecks and accelerate route processing. Outcome: Convergence times shrink by 40%, packet loss is eliminated under full load, and 99.999% uptime is maintained for mission-critical services.
Branch Office Secure VPN Scaling
Scenario: A global enterprise branch office supports 200+ concurrent IPsec VPN tunnels on a Cisco 1900 series router, facing session drops and authentication delays during peak login. Upgrading with MEM-1900-2GB-Cisco Memory MEM-1900-2GB expands crypto buffer capacity and stabilizes memory allocation. Outcome: VPN tunnel establishment accelerates by 30%, session drops are eliminated, and secure remote access remains uninterrupted even at maximum concurrency.
Unified Communications and VoIP Capacity Expansion
Scenario: An enterprise headquarters routes voice, video and data traffic—managing QoS policies for 1,000 simultaneous VoIP calls—through a Cisco 1900 series router experiencing jitter and call drops under heavy utilization. Deploying MEM-1900-2GB-Cisco Memory MEM-1900-2GB adds critical RAM for call tables and QoS buffers. Outcome: Achieves crystal-clear voice quality with less than 1% packet loss, reduces jitter by 25%, and delivers seamless collaboration for hundreds of concurrent users.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MEM-1900-2GB |  MEM-1900-512U1.5GB |  MEM-1900-512U1GB |  MEM-1900-512MB |  MEM-1900-1GB= | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR4 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 2 GB | 512 GB | 512 GB | 512 GB | 1GB |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop | Desktop / Laptop / Server | Desktop / Laptop / Server |
| Compatible Systems | Workstation | N/A | Workstation | Workstation | N/A |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 2133 MHz | 3200 MHz | 1900 MHz | 2133 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) | CL15 | CL16 | CL16 | CL15 | CL16 |
| Voltage | 1.35V | 1.5V | 1.35V | 1.2V | 1.2V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | No | No | No | Intel XMP 2.0 | No |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | Yes | Yes | Yes | Yes | Yes |
| Intel Platform Support | Intel 10th Gen | N/A | Intel 10th Gen | Intel 12th Gen | N/A |
| AMD Platform Support | AMD Ryzen 3000 | N/A | AMD Ryzen 3000 | AMD Ryzen 5000 | N/A |
| Use Case | Gaming / Workstation / Server | Gaming | Workstation | Gaming | General Use |
| Product Name | MEM-1900-2GB | MEM-1900-512U1.5GB | MEM-1900-512U1GB | MEM-1900-512MB | MEM-1900-1GB= |
| Height | 1.18 inches | N/A | 1.2 inches | 1.4 inches | 1.4 inches |
| Width | 5.25 inches | N/A | 5.3 inches | 5.3 inches | 5 inches |
| Depth | 0.12 inches | N/A | 0.6 inches | 0.3 inches | 0.5 inches |
| Weight | 0.1 lbs | N/A | 0.25 lbs | 0.3 lbs | 0.15 lbs |
Reviews & Ratings
C
Colin Mercer
4
Cisco memory ensured stable multitasking.
B
Bradley Evans
5
Upgrade was straightforward and effective.
R
Ross Cunningham
5
Improved overall router performance.
T
Timothy Rhodes
4
Reliable memory for demanding ISR deployments.
Questions & Answers
What is Cisco Memory MEM-1900-2GB?
Cisco Memory MEM-1900-2GB is a 2GB DDR2 SDRAM module specifically engineered to expand the memory capacity of Cisco 1900 series routers, enhancing overall network performance and reliability.
What are the key specifications of MEM-1900-2GB?
The MEM-1900-2GB features 2GB capacity, DDR2 SDRAM technology, PC2-6400/DDR2-800 speed, 240-pin form factor, and JEDEC compliance for seamless integration with Cisco equipment.
Which Cisco devices are compatible with MEM-1900-2GB?
MEM-1900-2GB is compatible with Cisco 1900 series routers, including models 1921 and 1941, as well as related ISR platforms that support DDR2 memory upgrades.
How do I install MEM-1900-2GB in my Cisco device?
Power down your Cisco device, remove the chassis cover, locate the DDR2 DIMM slot, align and firmly insert the MEM-1900-2GB module until locked, replace the cover, and power on the device.
What performance benefits does MEM-1900-2GB offer?
Upgrading to MEM-1900-2GB increases data throughput, reduces latency, and supports higher concurrent sessions, enabling smoother network operations and faster processing.
Is MEM-1900-2GB an original Cisco product?
Yes, MEM-1900-2GB is a genuine Cisco-branded memory module manufactured to Cisco’s strict quality standards for compatibility and reliability.
Does MEM-1900-2GB come with a warranty?
MEM-1900-2GB includes Cisco’s standard limited lifetime warranty, covering defects in materials and workmanship for the product’s operational lifespan.
Can I upgrade from 1GB to 2GB memory with MEM-1900-2GB?
Yes, MEM-1900-2GB allows you to replace existing 1GB modules with a single 2GB module to maximize memory capacity in supported Cisco devices.
What memory type and speed does MEM-1900-2GB use?
MEM-1900-2GB utilizes DDR2 SDRAM technology running at PC2-6400 (800MHz) speed to ensure optimal data transfer rates.
How do I troubleshoot installation issues with MEM-1900-2GB?
If the module isn’t recognized, verify proper seating, confirm device compatibility, update firmware, and consult Cisco’s troubleshooting guide for memory module errors.
What packaging is included with the MEM-1900-2GB module?
MEM-1900-2GB is shipped in anti-static packaging with a protective case, product label, and installation guide to ensure safe delivery and easy setup.
How do I verify the authenticity of my MEM-1900-2GB?
Check the Cisco holographic label, confirm the SKU on the packaging, and validate the serial number through Cisco’s authentication portal.
What are the operating conditions for MEM-1900-2GB?
MEM-1900-2GB operates within a temperature range of 0°C to 55°C (32°F to 131°F) and a relative humidity of 10% to 85% non-condensing.
Where can I purchase a genuine MEM-1900-2GB?
Genuine MEM-1900-2GB modules are available through Cisco-authorized distributors, certified resellers, and the official Cisco online store.
How does MEM-1900-2GB improve network performance?
By increasing memory capacity, MEM-1900-2GB enhances packet buffering, routing efficiency, and supports advanced features that optimize network throughput.
Are there any firmware requirements for MEM-1900-2GB?
Ensure your Cisco device runs firmware version 15.0(1)M or later to support MEM-1900-2GB; refer to Cisco’s release notes for specific firmware compatibility.
Can I mix MEM-1900-2GB with other memory modules?
Cisco recommends installing identical memory modules; mixing MEM-1900-2GB with different capacities or speeds may lead to instability or unsupported configurations.