Cisco • SKU MEM2821-256D
Cisco MEM2821-256D — MEM2821-256D
Cisco MEM2821-256D — 256MB DDR DRAM DIMM memory module for the Cisco 2821 Integrated Services Router (ISR G1). Genuine Cisco OEM module is a 184-pin DDR266/PC2100 SDRAM DIMM; 256MB is the base/default main-memory config for the 2821.
- End-of-sale — refurbished only
- Stock image pending — request real-world photo
Download Cisco datasheet ↗ via Cisco EoS/EoL announcement for 2800 Series ISR modules; corroborated by distributor spec sheets (memorystock, NSI Industries, hardwarejet).
What is the Cisco MEM2821-256D?
Cisco MEM2821-256D — 256MB DDR DRAM DIMM memory module for the Cisco 2821 Integrated Services Router (ISR G1). Genuine Cisco OEM module is a 184-pin DDR266/PC2100 SDRAM DIMM; 256MB is the base/default main-memory config for the 2821.
TFI supplies the MEM2821-256D refurbished to South African businesses, each unit covered by warranty and optional SLA. As a B-BBEE Level 2 distributor we can quote stock, lead time and price — usually within the same business day.
Specifications
| capacity | 256 MB |
|---|---|
| memory type | DDR SDRAM (DRAM) |
| form factor | 184-pin DIMM (genuine Cisco OEM) |
| speed | DDR266 / PC2100, 266 MHz (genuine Cisco); third-party AddOn variant listed as PC2700/333MHz |
| compatible platform | Cisco 2821 ISR (base/default DRAM); also listed for 2851 |
| max supported memory | 1 GB across 2 DIMM slots (router max) |
| role | Main system DRAM upgrade/replacement module |
| eol status | End-of-Life — EoS 2011-11-01, Last Date of Support 2016-10-31 |
End-of-life status
The MEM2821-256D is end-of-sale
Cisco has declared the MEM2821-256D end-of-sale, so it is no longer manufactured new. TFI supplies it professionally refurbished and tested.
Why refurbished still makes sense: a refurbished MEM2821-256D delivers the same proven performance at a fraction of the new-equipment cost, backed by a TFI warranty and SLA. It is the practical choice for spares, expansion of an existing deployment, or extending the life of a network you are not ready to replace. Talk to us about a successor model if you are planning a refresh.
Frequently asked questions
- What is the Cisco MEM2821-256D?
- Cisco MEM2821-256D — 256MB DDR DRAM DIMM memory module for the Cisco 2821 Integrated Services Router (ISR G1). Genuine Cisco OEM module is a 184-pin DDR266/PC2100 SDRAM DIMM; 256MB is the base/default main-memory config for the 2821.
- Is the MEM2821-256D still supported?
- The Cisco MEM2821-256D has reached end-of-sale, so it is supplied refurbished. TFI back every refurbished unit with a warranty and SLA options, which makes it a cost-effective choice where the platform still fits your network.
- Can TFI deliver the MEM2821-256D in South Africa?
- Yes. TFI is a South African distributor (B-BBEE Level 2) and ships the Cisco MEM2821-256D nationwide. Send us the SKU and we come back with stock, lead time and price — usually the same business day.
Also in the Cisco 2800 Series Integrated Services Routers
-
ACS-2801
Cisco 2801 ISR Accessory Kit — cables (console + AC power cord), 19" rackmount brackets, and printed documentation; spare/replacement bundle for the Cisco 2801 Integrated Services Router
-
ACS-2801-RM-19
Cisco 19-inch Rack Mount Kit for Cisco 2801 Integrated Services Router — mounting bracket accessory, includes rack ears and hardware
-
ACS-2811-Fan-1/2
Cisco 2811 ISR Fan #1 and Fan #2 Field Replacement Unit (FRU) — internal cooling fan module for Cisco 2811 Integrated Services Router
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ACS-2811-Fan-3
Cisco 2811 ISR Fan #3 — 40x40x28mm DC cooling fan, Field Replacement Unit (FRU) for Cisco 2811 Integrated Services Router
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ACS-2811RM-19
Cisco ACS-2811RM-19 — 19-inch rack mount kit for Cisco 2811 Integrated Services Router (ISR G1); two steel mounting brackets plus hardware screws enabling standard EIA 19-inch rack installation.
Verification sources (8)
- https://www.amazon.com/Cisco-memory-256-DDR-MEM2821-256D/dp/B00064C5WQ
- https://www.memorystock.com/cisco.asp?id=186&parent=0
- https://nsiindustries.com/product/network-memory-256mb-dram-ddr-2100-cisco-router-2821/
- https://www.hardwarejet.com/cisco-mem2821-256d.html
- https://www.provantage.com/addon-mem2821-256d-ao~7ACPM0H1.htm
- https://www.parkplacetechnologies.com/eosl/cisco/2821-integrated-services-router/
- https://www.cisco.com/c/en/us/products/collateral/routers/2800-series-integrated-services-routers-isr/eos-eol-notice-c51-735924.html
- https://www.parts-quick.com/cisco-2821-router-memory.html
Need pricing on MEM2821-256D?
Send us the SKU. We come back with stock, lead time and price — typically within the same business day.