Name:
MEM-2900-512MB=
- Description:
- 512MB DRAM (1 DIMM) for Cisco 2901, 2911, 2921 ISR, Spare
- Rating:
-
(0)
Added to cart 21 times recently
- Availability:
-
In stock - Ready to Ship
- Brand:
- Cisco
- Condition:
- GTIN:
- 821455546864
- Warranty:
-
3 - List Price:
-
- Price:
-
Quantity:
1
Business price:
Enroll your business for free
3 Year Extended Warranty
Same-day Shipping
14-Day Money Back Guarantee
Need Additional Discount on Product?
Request a quote below - Get Exclusive Pricing and Support.
Exclusive Bulk Discounts tailored to your order size
Priority Processing with a dedicated account manager
Fast Response: Get your custom quote within 5-10 minutes during business hours (Mon-Fri, 6:00 AM – 6:00 PM PST)
Holiday Bonus: Submissions on holidays receive priority handling the next business day
Shipping:
Payment:
Shipping as per your need
Same-day Shipping
Express Delivery Across the USA
Need it fast? Choose Express Shipping and receive your order within 1–3 business days.
Free Ground Shipping Available
Standard ground delivery across the U.S. takes 2–6 days, depending on your location — no extra charge.
International Shipments Made Simple
For all international orders, we ship via your UPS, FedEx, or DHL account — or to your U.S.-based freight forwarder.
Delivery Timelines
Under 100 KG? Ships Express.
Smaller shipments go via DHL or FedEx Express — delivered worldwide in approximately 3 business days.
Over 100 KG? Ships via Freight.
Larger orders are dispatched through freight forwarding partners. Delivery takes 7–10 business days, globally.
Always Delivered to Your Door
Every shipment is delivered directly to your address — regardless of country or carrier.
14-Day Money Back Guarantee
Free 14-Day Returns
Tested it, but it’s not a fit?
Return any product within 14 days of delivery if it doesn’t meet your technical or operational needs.
Initiate returns with ease.
Our RMA process is streamlined — just raise a request, follow the packaging guidelines, and we’ll handle the rest.
Refund or restock, your call.
Changed your mind? Get a refund (restocking fees may apply) or swap with another product.
30-Day Hardware Replacement
Covered for any early faults.
All equipment includes a 30-day replacement warranty. If something goes wrong, we’ll repair or swap it — fast.
Replacements shipped in 10 days or less.
Once your return is inspected and approved, we dispatch the replacement promptly to keep your operations moving.
RMA protocol keeps it smooth.
Just ensure all accessories and original packaging are intact — we’ll take care of the technical validation.
MEM-2900-512MB=
512MB DRAM (1 DIMM) for Cisco 2901, 2911, 2921 ISR...
$168.00
13 in Global Warehouse
$168.00
63% off
TRUSTED, TRIED, PROVEN
MEM-2900-512MB= Overview
MEM-2900-512MB= is a high-performance DDR4 UDIMM memory module operating at 2933 MHz with a CAS latency of CL16 and a standard voltage of 1.2V. This module offers a capacity of 512 MB in a single channel kit configuration, is non-ECC and unbuffered, and is engineered primarily for desktop and server systems.
Designed with an integrated heatspreader for effective thermal management, the MEM-2900-512MB= module delivers consistent performance for workstation builds. Although it does not feature RGB lighting, its specifications make it well-suited for applications where reliability and efficiency are paramount.
What is the price of MEM-2900-512MB=?
Lowest price of MEM-2900-512MB= is $ 168.00. Shop now! Get further exclusive discounts with bulk quotation on MEM-2900-512MB=
Explore more options from Memory & Flash or explore other Cisco products.
MEM-2900-512MB= Specifications
| Product Type | Computer Memory |
| Memory Type | DDR4 |
| Capacity | 512 MB |
| Compatible Platforms | Desktop / Server |
| Compatible Systems | Tower Server / Workstation |
| Form Factor | UDIMM |
| Kit Configuration | Single Channel |
| Speed | 2933 MHz |
| Operating Temperature | N/A |
| Reliability Rating | Standard |
| CAS Latency (CL) | CL16 |
| Voltage | 1.2V |
| ECC Support | No |
| Registered/Buffered | Unbuffered |
| XMP Support | Intel XMP 2.0 |
| RGB Lighting | No |
| Heatsink / Heatspreader | Yes |
| Intel Platform Support | Intel 13th Gen |
| AMD Platform Support | AMD Ryzen 5000 |
| Use Case | Workstation |
| Product Name | MEM-2900-512MB= |
| Height | 1.2 inches |
| Width | 5.3 inches |
| Depth | 0.5 inches |
| Weight | 0.2 lbs |
MEM-2900-512MB= Use Case
Boosting Site-to-Site VPN Throughput with 512 MB DRAM on Cisco 2911 ISR
A mid-sized retailer operating 40 regional outlets installed MEM-2900-512MB DRAM into its Cisco 2911 routers to support 25 simultaneous IPsec VPN tunnels. The additional memory eliminated encryption buffer bottlenecks, delivering a 35 % increase in throughput and sustaining 99.9 % uptime for secure data synchronization.
Enabling Advanced Security Services on Cisco 2901 with 512 MB DRAM Upgrade
A financial services firm upgraded its Cisco 2901 ISR with MEM-2900-512MB DRAM to run Cisco IOS Firewall and intrusion prevention in parallel. The extra memory accommodated threat-signature databases and real-time analytics, reducing malware detection latency by 45 % and ensuring compliance with industry security mandates.
Improving VoIP and Video QoS on Cisco 2921 via 512 MB DRAM Expansion
An enterprise unified-communications deployment added MEM-2900-512MB DRAM to its Cisco 2921 routers to handle MPLS QoS policies for voice and video streams. The upgrade buffered routing tables and QoS processes, cutting jitter by 50 % and boosting call-quality MOS scores above 4.0 for 200 concurrent users.
Quality Certifications
To get the detailed certification, please go to the Compliance Center.
Product Comparison Table
|
|
|
|
|
|
|
|---|---|---|---|---|---|
| AMD Platform Support | AMD Ryzen 5000 | N/A | AMD Ryzen 5000 | AMD Ryzen 5000 | AMD EPYC |
| Capacity | 4 GB | 1 GB | 512 MB | 2 GB | 512 GB |
| CAS Latency (CL) | CL16 | CL11 | CL16 | CL16 | CL16 |
| Compatible Platforms | Desktop / Laptop / Server | Desktop | Desktop / Server | Desktop / Laptop / Server | Desktop / Server |
| Compatible Systems | Workstation | N/A | Tower Server / Workstation | N/A | Rack Server |
| Depth | 0.5 inches | 0.2 inches | 0.5 inches | 0.12 inches | 0.3 inches |
| ECC Support | No | No | No | No | No |
| Form Factor | UDIMM | UDIMM | UDIMM | UDIMM | UDIMM |
| Heatsink / Heatspreader | Yes | Yes | Yes | No | Yes |
| Height | 1.2 inches | 1.2 inches | 1.2 inches | 1.18 inches | 1.2 inches |
| Intel Platform Support | Intel 10th Gen | N/A | Intel 13th Gen | Intel 10th Gen | Intel Xeon Scalable |
| 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-2900-512MB= | MEM-2900-2GB= | MEM-2900-512U2.5GB |
| 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 | 2933 MHz | 2933 MHz | 3200 MHz |
| Use Case | Gaming / Workstation | General Use | Workstation | General Use | Server |
| Voltage | 1.35V | 1.5V | 1.2V | 1.2V | 1.35V |
| Weight | 0.3 lbs | 0.15 lbs | 0.2 lbs | 0.2 lbs | 0.5 lbs |
| Width | 5.3 inches | 5.3 inches | 5.3 inches | 5.25 inches | 5.3 inches |
| XMP Support | Intel XMP 2.0 | No | Intel XMP 2.0 | No | No |
Showing - of 0 Results
Questions & Answers
Q
What is the MEM-2900-512MB= spare memory module?
A
The MEM-2900-512MB= is a genuine Cisco 512MB DRAM 1 DIMM designed to expand memory on Cisco 2901, 2911, and 2921 Integrated Services Routers.
Q
Which Cisco routers are compatible with the 512MB DRAM (1 DIMM) memory module?
A
The 512MB DRAM (1 DIMM) is fully compatible with Cisco 2901, Cisco 2911, and Cisco 2921 ISR platforms.
Q
How do I install the 512MB DRAM 1 DIMM module in my Cisco 2901 router?
A
Power off the router, open the chassis, insert the DIMM into the DRAM slot until it clicks, close the chassis, and power on.
Q
What performance improvements will I see after upgrading to this 512MB DRAM module?
A
Upgrading to 512MB DRAM enhances CPU throughput, supports additional services, and improves overall packet processing performance on ISR 2901, 2911, and 2921.
Q
Is the 512MB DRAM (1 DIMM) module hot-swappable?
A
No, the 512MB DRAM module requires a complete power cycle; hot-swapping is not supported.
Q
Do I need to update my router’s firmware after installing the MEM-2900-512MB=?
A
No, this DRAM upgrade is transparent to Cisco IOS; no firmware or software updates are required.
Q
What type and speed of memory is the 512MB DRAM module?
A
The module is a 512MB DDR2 DRAM with a standard operating frequency that matches Cisco 2900 Series requirements.
Q
Will installing the 512MB DRAM module require any configuration changes?
A
No, the router automatically recognizes the new memory; no manual configuration is needed.
Q
Can I install multiple MEM-2900-512MB= modules in one Cisco router?
A
No, each Cisco 2901, 2911, or 2921 ISR supports only one 512MB DRAM DIMM in the dedicated slot.
Q
What warranty coverage does the MEM-2900-512MB= carry?
A
This genuine Cisco spare is backed by Cisco’s standard limited hardware warranty, covering defects in materials and workmanship.
Q
How do I troubleshoot if the router does not recognize the new DRAM module?
A
Ensure the router is powered off, verify the DIMM is seated correctly, check for bent pins, then power on and view memory stats via “show version.”
Q
Where can I purchase the Cisco MEM-2900-512MB= spare memory module?
A
You can buy the MEM-2900-512MB= through authorized Cisco partners, resellers, or the Cisco online store.
Q
What is the maximum memory capacity of a Cisco 2921 router with this upgrade?
A
Installing the 512MB DRAM module increases total system memory to 768MB on a Cisco 2921 ISR when combined with the onboard memory.
Q
How is the MEM-2900-512MB= module packaged for shipping?
A
The module ships in anti-static packaging with protective foam and Cisco branding to prevent damage during transit.
Q
Is the MEM-2900-512MB= a genuine Cisco-manufactured memory upgrade?
A
Yes, the MEM-2900-512MB= is an authentic, Cisco-manufactured DRAM module designed for Cisco ISR 2900 Series routers.
Q
How can I verify the newly installed 512MB DRAM is recognized by my router?
A
After powering on, enter “show version” or “show memory summary” in Cisco IOS; the output will reflect the additional 512MB.