AddOn
MEM2821-512D=-AO AddOn 512MB DDR SDRAM Memory Module
Mfg Part Number: MEM2821-512D=-AO , Item #: 974445
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Price: $897.87
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Last Updated: Jan 05, 2026
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This Cisco MEM2821-512D= compatible 512MB DDR-333MHz dual rank ECC 2.5V 184-pin CL2.5 factory original DRAM is 100% guaranteed to be compatible with your system and to work right the first time. All of our server memory is built to strict JEDEC standards at one of the tier 1 facilities (Samsung, Micron, or Hynix). Our products are also guaranteed by federal law to not affect or void OEM warranties.
Main Specification
| General Information | |
| Manufacturer | AddOn |
| Manufacturer Part Number | MEM2821512DAO |
| Manufacturer Website Address | http://www.addoncomputer.com |
| Brand Name | AddOn |
| Product Name | RAM Module |
| Packaged Quantity | 1 Piece |
| Product Type | RAM Module |
| Technical Information | |
| Memory Size | 512 MB |
| Memory Technology | DDR DRAM |
| Memory Voltage | 2.50 V |
| Number of Modules | 1 x 512MB |
| Memory Speed | 333 MHz |
| Memory Standard | DDR-333/PC-2664 |
| Memory Rank | Dual-rank |
| Error Checking | ECC |
| CAS Latency | CL2.5 |
| Device Supported | Server |
| Physical Characteristics | |
| Number of Pins | 184-pin |
| Thickness | 500 mil |
| Width | 2" |
| Length | 6.5" |
| Weight (Approximate) | 8 oz |
| Miscellaneous | |
| Compatibility | Cisco 2821 Integrated Services Router |
| Certifications & Standards | JEDEC Standards |
| Country of Origin | United States |
| TAA Compliant | No |
| Warranty | |
| Limited Warranty | Lifetime |
WARNING:: The plastic used in cable products can expose you to lead and lead components,
chemicals known to the State of California to cause cancer, birth defects, or other reproductive harm.
For more information go to www.P65Warnings.ca.gov
