The ASUS/ASmobile G51JX-X2 uses DDR3 SODIMM PC3-10600 1333MHz memory upgrades as listed in the detailed specifications below. All memory and other upgrades compatible with this system are listed on this page.

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Memory Type DDR3 SODIMM PC3-10600 1333MHz
Base Memory 1GB (Removable) or 2GB (Removable) or 4GB (Removable)
Upgrade Slots 2 Sockets with Core i3/i5 CPU 4 Sockets with some Core i7 CPU
Maximum Memory 4GB 1066 MHz using Core i5/Core i3 8GB 1066/1333 MHz using Core i7
Maximum Module Size 2GB
CPU & Chipset Intel Core i7 (N/A)
Bus Architecture Flash - SDHC; Flash - Secure Digital; SSD - SATA 2.5-inch 9.5mm; USB
Notes If 4GB is installed, the recognized memory may be reduced to 3.5GB or less (depending on system configuration and memory allocation). Maximum configurations require a 64-bit operating system. Per Asus datasheet, system supports DDR3-1066 / 1333 MHz memory up to 8GB using Core i7 CPU. Systems running Core i5 and Core i3 series CPUs support DDR3-1066 MHz up to 4GB.
Part Number 72.5C9
1333MHz 204pin CL9
Call to Order
$10.99
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Part Number 721C9
1333MHz 204pin CL9
In Stock
$12.99
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Part Number 722C9
1333MHz 204pin CL9
In Stock
$15.99
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Part Number 72.5C9H
1333MHz 204pin CL9
Call to Order
$17.99
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Part Number 721C9H
1333MHz 204pin CL9
In Stock
$19.99
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Part Number 721C9-2
1333MHz 204pin CL9
In Stock
$24.99
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Part Number 722C9H
1333MHz 204pin CL9
In Stock
$24.99
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Part Number 722C9-2
1333MHz 204pin CL9
In Stock
$30.99
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Part Number 721C9-2H
1333MHz 204pin CL9
In Stock
$39.99
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Part Number 722C9-2H
1333MHz 204pin CL9
In Stock
$49.99
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Part Number 722C9-2
1333MHz 204pin CL9
In Stock
$30.99
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Part Number 722C9-2H
1333MHz 204pin CL9
In Stock
$49.99
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Part Number 722C9
1333MHz 204pin CL9
In Stock
$15.99
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Part Number 721C9-2
1333MHz 204pin CL9
In Stock
$24.99
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Part Number 722C9H
1333MHz 204pin CL9
In Stock
$24.99
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Part Number 721C9-2H
1333MHz 204pin CL9
In Stock
$39.99
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Part Number 721C9
1333MHz 204pin CL9
In Stock
$12.99
View Product
Part Number 721C9H
1333MHz 204pin CL9
In Stock
$19.99
View Product
Part Number 72.5C9
1333MHz 204pin CL9
Call to Order
$10.99
View Product
Part Number 72.5C9H
1333MHz 204pin CL9
Call to Order
$17.99
View Product

Upgrade References

The table below are references to other manufacturer part numbers which are specific to this device, have identical specifications to our components. This information is made available for your reference.
Part# Source References
KVR1333D3S9/1G 1GB DDR3 PC3-10600 1333MHz SODIMM Kingston 721C9
KVR1333D3S8S9/2G 2GB DDR3 PC3-10600 1333MHz SODIMM Kingston 722C9
KVR1333D3S9/2G 2GB DDR3 PC3-10600 1333MHz SODIMM Kingston 722C9