The 800-21754-12 B0 is a Cisco internal hardware part number (PID) typically associated with memory or system-level components used in Cisco networking platforms—most commonly linked to the Cisco 7300 Series routers.
Cisco “800-xxxxx-xx” numbers are manufacturing / assembly part numbers, not commercial SKUs. They are usually found on:
- Internal boards
- Memory modules
- Subassemblies within routers
This specific part (800-21754) is identified as a Cisco memory-related component used within routing hardware platforms.
The suffix:
- -12 → Revision or assembly version
- B0 → Hardware revision (board/CPU stepping level used by Cisco manufacturing)
Key Features
- Manufacturer: Cisco Systems
- Part Number: 800-21754-12
- Revision: B0
- Product Type: Internal memory / hardware subcomponent
- Platform Association: Cisco 7300 Series routers
- Function:
- System memory or internal hardware support
- Enables routing table storage and IOS operation
Technical Specifications
- Component Type: Embedded memory or board-level assembly
- Installation: Factory-installed or field-replaceable (depending on module)
- Architecture Role:
- Supports packet processing
- Stores routing tables, buffers, and IOS runtime data
- Compatibility:
- Cisco 7300 series (e.g., Cisco 7301)
- Identification Method:
- Visible via “show inventory” command or physical label
- Not a standalone sellable product (like a router or module)
- Used internally within larger assemblies
- Often appears in:
- Repair logs
- RMA documentation
- Spare parts listings
- “B0” revision indicates a hardware revision update (common in Cisco components for bug fixes or performance improvements)
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