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Green 240-pin DDR3 DIMM with black chips and gold contacts

Axiom

Axiom 8GB DDR3 1333 ECC Unbuffered Server RAM A6559261-AX

SKU CH-BF86-KK0HF MPN A6559261-AX

8GB DDR3 1333 ECC unbuffered DIMM for Dell PowerEdge R720, R720xd and Precision T1600 servers

  • Total capacity8 GB
  • Rated speedDDR3 1333 (PC3 10600)
  • CAS latencyCL9
  • Rated voltage1.5 V
  • Buffer typeUnbuffered
  • Product type240-Pin DDR3 SDRAM
  • 8GB capacity supports memory-intensive server workloads
  • ECC error correction protects data integrity in critical applications
  • DDR3 1333MHz speed matches PC3 10600 system requirements
  • Unbuffered design installs directly in compatible Dell PowerEdge and Precision systems
  • 240-pin DIMM form factor fits standard DDR3 server memory slots

8 GB DDR3 ECC module for Dell PowerEdge

This 8 GB DDR3-1333 DIMM provides ECC error correction in an unbuffered layout, matching the CL9 timing and 1.50 V specification required by supported Dell platforms. It is built for administrators expanding memory in compatible servers or workstations that accept 240-pin unbuffered ECC modules. Buyers needing registered or load-reduced memory for other server classes cannot use this module.

Capacity and headroom

The single 8 GB rank delivers 1333 MT/s throughput at PC3-10600 bandwidth, suitable for virtualisation hosts, database caches or compute nodes that benefit from ECC integrity. Workloads exceeding the per-slot limit or requiring higher frequencies will need additional slots or a different memory standard. Systems that only support registered DIMMs will not recognise this unbuffered part.

Dell-validated compatibility list

The module carries validation for PowerEdge R720, PowerEdge R720xd and Precision T1600 platforms, simplifying qualification for IT teams managing those specific models. No extra software, heat-spreaders or configuration utilities are bundled; the value lies in the tested compatibility assurance for the named Dell systems. Installers working with non-listed hardware must verify support independently.

How it compares

Measured against everything we stock in ECC Server RAM, at today’s prices. Recalculated every night.

Price $61.99
Cheaper than about 80% of the 6,523 comparable items (median $188.99).
Total capacity 8 GB
Lower than about 80% of the 6,064 comparable items (median 32 GB).
Price per GB $7.75 per GB
Pricier than about 54% of the 6,064 comparable items (median $7.25 per GB).

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Specifications

Product
Brand nameAxiom
Model nameA6559261-AX
Total capacity8 GB
Product type240-Pin DDR3 SDRAM
Performance
Rated speedDDR3 1333 (PC3 10600)
Memory
CAS latencyCL9
ECC supportYes
Buffer typeUnbuffered
Power
Rated voltage1.5 V
Size & build
Shipping weight0.09 kg
Package size152 × 76 × 25 mm

Questions about this item

Will this 240-pin DDR3 1333 CL9 module work alongside existing 1.50V DDR3 DIMMs in a Dell PowerEdge R720?

Yes — it matches the 1.50V DDR3 1333 CL9 spec used by the R720, so it will run at the same speed and timings as identical modules already installed.

How can I confirm the 8 GB ECC unbuffered stick is detected and error-correction is active after installation?

Enter the BIOS or UEFI on the Dell Precision T1600 or PowerEdge R720xd; the memory summary should show 8 GB per module with ECC enabled and no correctable-error counts incrementing.

Does the A6559261-AX box include only the 240-pin DIMM or are any brackets or cables supplied?

The package contains the single 8 GB DDR3 1333 ECC unbuffered DIMM; no brackets, cables or additional hardware are included.

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