Alternative to MEM2821-256D: Better-Value Equivalents in Stock
Comparing the MEM2821-256D (MEM2821-256D - Cisco 256MB DDR DIMM Memory Module for Cisco 2821/2851 Routers) against alternatives? Pro Disk Network stocks 12 similar Cisco parts that offer comparable performance at different price points. Each option below is in-stock, US-warehoused, and tested-and-certified before ship. Bulk pricing is available on quantities of 5+; B2B procurement can use Net 30 with PO.
About the MEM2821-256D
| SKU | MEM2821-256D |
|---|---|
| Product | MEM2821-256D - Cisco 256MB DDR DIMM Memory Module for Cisco 2821/2851 Routers |
| Current price | $133.76 |
| Stock status | In Stock |
| Detail page | View MEM2821-256D › |
Alternatives to MEM2821-256D
Each part below is currently in our US warehouse, ships same-day for orders before 2pm ET, and includes our 90-day warranty. SKUs link to the full product page with photos, datasheets and B2B quote form.
PWR-2821-51-AC-IP - Cisco PoE Power Supply for Cisco 2821 / 2851 Routers
SKU: PWR-2821-51-AC-IP
Price: $400.45
ASA5510-CF-256MB - Cisco 256MB CompactFlash (CF) Memory Card for ASA5510 Series Sa5500-Cf-256MB=
SKU: ASA5510-CF-256MB
Price: $116.33
ASA5520-CF-256MB - Cisco 256MB CompactFlash (CF) Memory Card for ASA5520 Series Sa5520-Cf-256MB=
SKU: ASA5520-CF-256MB
Price: $116.33
15-9164-01 - Cisco 256MB DDR-333MHz PC2700 ECC Unbuffered CL2 184-Pin DIMM 2.5V Memory Module
SKU: 15-9164-01
Price: $128.18
15-9164-01-1 - Cisco 256MB DDR-333MHz PC2700 ECC Unbuffered CL2.5 184-Pin DIMM Memory Module
SKU: 15-9164-01-1
Price: $128.18
How we pick alternatives
Every recommendation above was selected using these criteria:
- Spec parity — capacity, speed, port count, and form factor matched within a 10% tolerance
- Price spread — alternatives shown across the price range, so you can pick on budget
- Brand mix — both OEM-equivalent and trusted aftermarket, all certified
- Reliability data — preferred parts have failure rates below 1% in our 18-month return tracking
- In stock today — shipping today, not 4-6 weeks from now
Want a side-by-side spec comparison?
We can prepare a written comparison covering throughput, power draw, form factor and validated compatibility. Email sales@prodisknetwork.com or call +1 (407) 205-8454 — most quotes ship within 4 business hours.