
Safe checkout
Secure payments
Fast dispatch
1–2 day handling
Free shipping
U.S. ground
Warranty & RMA
Support after delivery
Dell A21254866 8GB DDR3-1066MHz RDIMM 4Rx4 CL7 Memory
- 8GB memory capacity
- DDR3 SDRAM technology
- 1066MHz memory speed
- Registered DIMM (RDIMM)
- 4Rx4 module configuration (quad rank, 4 bits)
- CL7 CAS latency
A21254866 isn't on our shelf today — we source it to order. Request a quote and we'll confirm price and lead time within one business day.
Key specifications
See full specs ↓- Capacity
- 8GB
- Memory Type
- DDR3 SDRAM
- Speed
- 1066MHz
- Form Factor
- RDIMM (Registered DIMM)
- Rank
- 4Rx4 (Quad Rank x4)
- CAS Latency
- CL7
Product details
The Dell A21254866 is an 8GB DDR3-1066MHz RDIMM memory module. It is a registered DIMM designed for servers requiring enhanced memory stability and capacity at a specific speed.
Technical Information
| Capacity | 8GB |
| Memory Type | DDR3 SDRAM |
| Speed | 1066MHz |
Additional Specifications
| Form Factor | RDIMM (Registered DIMM) |
| Rank | 4Rx4 (Quad Rank x4) |
| CAS Latency | CL7 |
Description
The Dell A21254866 is an 8GB DDR3 Registered DIMM (RDIMM) memory module, operating at a speed of 1066MHz. RDIMMs incorporate a register chip that buffers address and command signals, reducing the electrical load on the memory controller. This design enhances system stability and allows for higher memory capacities, making RDIMMs a standard for enterprise-grade servers. This module features a 4Rx4 configuration, indicating it is quad-ranked with a 4-bit data width per rank. Quad-rank modules offer higher density and can sometimes provide performance benefits in systems designed to utilize them, though they also place a higher load on the memory controller compared to single or dual-rank modules. The CL7 CAS latency specifies a relatively tight timing for this memory speed. With a substantial 8GB capacity and DDR3 technology, this module is suitable for upgrading memory in compatible Dell servers that support registered ECC memory. It is crucial for improving the server's ability to run multiple applications simultaneously, handle larger datasets, and enhance overall system performance for demanding workloads.
Condition: Refurbished
Free U.S. ground shipping
Typically 1–2 days handling, 3–7 days in transit.
Purchase orders accepted
Government, enterprise, data center and small business.
Buying 10+ units?
Get volume pricing and availability for A21254866.



