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2GB DRAM handled heavier routing workloads without slowdown.
MEM-1900-2GB=
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2GB DRAM 1 DIMM FOR CISCO 1941/ 1941W ISR SPARE
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Name:
MEM-1900-2GB=
- Description:
- 2GB DRAM 1 DIMM FOR CISCO 1941/ 1941W ISR SPARE
- Rating:
Added to cart 28 times recently
- Availability:
In stock - Ready to Ship
- Brand:
- Cisco
- GTIN:
- 14445527138
- Condition:
- Warranty:
- 3
- List Price:
$803.00
- Price:
$253.0068.5% off
Quantity:
1
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MEM-1900-2GB= Overview
MEM-1900-2GB= is a DDR3 SO-DIMM memory module offering 2 GB of capacity designed primarily for laptop systems. It features a speed of 1600 MHz with a CAS latency (CL) of CL11 and operates at a voltage of 1.5V, making it a reliable and energy-efficient choice for entry-level computing, multimedia tasks, and everyday applications. This non-ECC, unbuffered module comes in a single channel kit configuration, ensuring compatibility with compact systems where space is at a premium.
Engineered with a streamlined, low-profile design and without an integrated heatspreader, the MEM-1900-2GB= module is ideal for users seeking efficient performance without the need for complex thermal solutions. Its design and specifications make it best suited for general use in laptop environments, where a balance of performance and cost-effectiveness is paramount.
MEM-1900-2GB= price is $253.00, a 68.5% 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
- N/A
- Height
- N/A
- Depth
- N/A
- Width
- N/A
- Operating Temperature
- N/A
- Product Type
- Computer Memory
- Reliability Rating
- Standard
- ECC Support
- No
- Registered/Buffered
- Unbuffered
- RGB Lighting
- No
- Kit Configuration
- Single Channel
- Intel Platform Support
- N/A
- Compatible Systems
- N/A
- AMD Platform Support
- N/A
- XMP Support
- No
- Capacity
- 2 GB
- Speed
- 1600 MHz
- Use Case
- General Use
- Heatsink / Heatspreader
- No
- Voltage
- 1.5V
- Memory Type
- DDR3
- Compatible Platforms
- Laptop
- Form Factor
- SODIMM
- CAS Latency (CL)
- CL11
- Product Name
- MEM-1900-2GB=
MEM-1900-2GB= Use Case
High-Performance Branch Office Upgrade with MEM-1900-2GB DRAM for Cisco 1941 ISR
In a mid-sized retail chain deploying Cisco 1941/1941W ISR routers, installing the MEM-1900-2GB DRAM 1 DIMM elevates packet-forwarding capacity and enables advanced QoS features. The 2 GB memory expansion delivers up to 40% higher WAN throughput, eliminates routing bottlenecks during peak traffic and ensures consistent VoIP and video performance—driving faster transactions, superior customer experience and measurable ROI.
Rapid Failover and Uptime Assurance at Remote Sites with MEM-1900-2GB DRAM Spare
An energy services firm maintains MEM-1900-2GB DRAM 1 DIMM spares alongside Cisco 1941W ISR routers at unmanned field stations. When DRAM failures occur, on-site technicians can swap modules in under 10 minutes, cutting network downtime by 85%, preserving SCADA connectivity and safeguarding real-time telemetry. This proactive spare strategy enforces 99.9% availability, strengthens SLA compliance and prevents costly operational delays.
Scalable Secure VPN Termination on Cisco 1941 ISR Using MEM-1900-2GB DRAM
A distributed enterprise leverages the MEM-1900-2GB DRAM 1 DIMM upgrade in its Cisco 1941 ISR routers to support 75+ concurrent IPsec VPN tunnels and deep-packet inspection. The additional 2 GB of DRAM accelerates encryption/decryption processes, sustains 150 Mbps of aggregated VPN throughput and optimizes route caching. As a result, remote employees enjoy seamless, high-bandwidth connectivity with end-to-end security, boosting productivity and compliance.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table 
| MEM-1900-2GB= |  MEM-1900-512MB |  MEM-1900-512U1GB |  MEM-1900-1GB |  MEM-1900-512U1.5GB | |
|---|---|---|---|---|---|
| Product Type | Computer Memory | Computer Memory | Computer Memory | Computer Memory | Computer Memory |
| Memory Type | DDR3 | DDR4 | DDR4 | DDR4 | DDR4 |
| Capacity | 2 GB | 512 GB | 512 GB | 1 GB | 512 GB |
| Compatible Platforms | Laptop | Desktop / Laptop / Server | Desktop | Desktop / Laptop / Server | Desktop |
| Compatible Systems | N/A | Workstation | Workstation | N/A | N/A |
| Form Factor | SODIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Kit Configuration | Single Channel | Single Channel | Single Channel | Single Channel | Single Channel |
| Speed | 1600 MHz | 2133 MHz | 1900 MHz | 1600 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) | CL11 | CL15 | CL16 | CL16 | CL16 |
| Voltage | 1.5V | 1.2V | 1.35V | 1.2V | 1.5V |
| ECC Support | No | No | No | No | No |
| Registered/Buffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered | Unbuffered |
| XMP Support | No | Intel XMP 2.0 | No | No | No |
| RGB Lighting | No | No | No | No | No |
| Heatsink / Heatspreader | No | Yes | Yes | No | Yes |
| Intel Platform Support | N/A | Intel 12th Gen | Intel 10th Gen | N/A | N/A |
| AMD Platform Support | N/A | AMD Ryzen 5000 | AMD Ryzen 3000 | N/A | N/A |
| Use Case | General Use | Gaming | Workstation | General Use | Gaming |
| Product Name | MEM-1900-2GB= | MEM-1900-512MB | MEM-1900-512U1GB | MEM-1900-1GB | MEM-1900-512U1.5GB |
| Height | N/A | 1.4 inches | 1.2 inches | N/A | N/A |
| Width | N/A | 5.3 inches | 5.3 inches | N/A | N/A |
| Depth | N/A | 0.3 inches | 0.6 inches | N/A | N/A |
| Weight | N/A | 0.3 lbs | 0.25 lbs | N/A | N/A |
Reviews & Ratings
N
Nathan Scott
5
Cisco certified memory ensured full compatibility.
K
Kevin Moore
4
Performance improvement was immediate after upgrade.
L
Luke Reynolds
4
Smooth installation and stable operation.
P
Patrick Wilson
4
Great option for demanding ISR 1941 deployments.
Questions & Answers
What is the MEM-1900-2GB= module?
The MEM-1900-2GB= is a 2 GB DRAM single inline memory module (DIMM) designed as a spare upgrade for Cisco 1941 and 1941W Integrated Services Routers.
Is the MEM-1900-2GB= compatible with Cisco 1941 and 1941W routers?
Yes. The MEM-1900-2GB= is fully compatible with Cisco 1941 and 1941W ISRs and meets Cisco’s specified memory requirements for those platforms.
What are the key specifications of the 2 GB DRAM DIMM?
This module provides 2 GB of DDR2 DRAM in a 240-pin SODIMM format, runs at 533 MHz, and operates at 1.8 V in standard industrial temperature ranges.
How do I install the MEM-1900-2GB= in my Cisco 1941 router?
Power off the router, remove the chassis cover, insert the DIMM into the empty memory slot at a 45° angle, press down until it clicks, then replace the cover and power on.
What performance improvements does adding 2 GB DRAM deliver?
Upgrading to 2 GB DRAM increases packet buffering, accelerates routing operations, enhances VPN throughput, and supports advanced security features with lower latency.
Is the MEM-1900-2GB= Cisco certified?
Yes. This module is Cisco-qualified, ensuring full interoperability, stability, and support when used with Cisco 1941 and 1941W routers.
Can I mix the MEM-1900-2GB= with existing memory modules?
No. For optimal stability, the Cisco 1941 platform supports a single 2 GB DIMM; mixing module types or sizes is not recommended.
What warranty covers the MEM-1900-2GB=?
The MEM-1900-2GB= carries Cisco’s limited lifetime warranty when purchased through authorized channels.
What are the physical dimensions of the DIMM?
The module measures 67.6 mm × 30 mm × 3 mm, conforms to standard SODIMM form factors, and fits directly into the Cisco 1941 memory slot.
Which Cisco IOS versions support the 2 GB DRAM upgrade?
The upgrade is supported on Cisco IOS 15.x and later releases; ensure your router image is current to leverage full memory performance.
How can I verify successful memory installation?
After boot, log into the CLI and issue the show version command; the total system memory value should reflect the new 2 GB capacity.
What is the operating temperature range for this DRAM module?
The MEM-1900-2GB= operates reliably between 0 °C and 55 °C in standard environments and between –40 °C and 85 °C in industrial-grade deployments.
What is the expected lifespan of the MEM-1900-2GB=?
Under normal operating conditions, this Cisco-certified DRAM module has an expected lifespan of over 5 years with continuous operation.
Are there any known interoperability issues with other Cisco hardware?
No. The MEM-1900-2GB= is specifically validated for Cisco 1941 and 1941W; it has no reported conflicts when used as specified.
How do I order the MEM-1900-2GB= spare module?
You can order the MEM-1900-2GB= through Cisco-authorized resellers or directly via the Cisco online store using the SKU provided.
What is the return policy for the MEM-1900-2GB=?
Authorized Cisco resellers typically offer a 30-day return window on unopened modules; confirm specific terms at the point of purchase.