What is the Cisco MEM2821-256D?
The Cisco MEM2821-256D is a memory module, listed by the manufacturer as "256MB DIMM DDR DRAM for the Cisco 2821". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
CircularTelecomParts Catalogue

Part Overview
The Cisco MEM2821-256D is a memory module — originally specified as "256MB DIMM DDR DRAM for the Cisco 2821" — available refurbished or as surplus stock via Circular Telecom, supporting network operators sourcing decommissioned and reclaimed equipment.
Common Questions
The Cisco MEM2821-256D is a memory module, listed by the manufacturer as "256MB DIMM DDR DRAM for the Cisco 2821". It is part of Circular Telecom's surplus and refurbished telecom/IT equipment inventory.
Circular Telecom sources and resells surplus and refurbished Cisco network equipment, including parts such as the MEM2821-256D, subject to current availability. Contact Circular Telecom for a live quote.
Circular Telecom Catalogue