The ASUS/ASmobile S121 Notebook uses DDR2 SODIMM PC2-4200 533MHz, PC2-6400 800MHz 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 DDR2 SODIMM PC2-4200 533MHz, PC2-6400 800MHz
Base Memory 512 MB (Removable)
Upgrade Slots 1 Socket(s)
Maximum Memory 2 GB
Maximum Module Size 2GB
CPU & Chipset ~
Bus Architecture USB
Part Number 62.2C6
533MHz 200pin CL6
Backordered
$4.99
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Part Number 62.5C6
533MHz 200pin CL6
In Stock
$6.99
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Part Number 64.5C6
800MHz 200pin CL6
In Stock
$6.99
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Part Number 62.2C6H
533MHz 200pin CL6
Backordered
$7.99
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Part Number 621C4
533MHz 200pin CL4
In Stock
$7.99
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Part Number 621C6
533MHz 200pin CL6
In Stock
$7.99
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Part Number 641C6
800MHz 200pin CL6
In Stock
$7.99
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Part Number 62.5C6H
533MHz 200pin CL6
In Stock
$9.99
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Part Number 64.5C6H
800MHz 200pin CL6
In Stock
$9.99
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Part Number 64.2C6
800MHz 200pin CL6
In Stock
$10.99
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Part Number 621C4H
533MHz 200pin CL4
In Stock
$12.99
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Part Number 621C6H
533MHz 200pin CL6
In Stock
$12.99
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Part Number 641C6H
800MHz 200pin CL6
In Stock
$12.99
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Part Number 622C4
533MHz 200pin CL4
In Stock
$15.99
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Part Number 622C6
533MHz 200pin CL6
In Stock
$15.99
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Part Number 642C6
800MHz 200pin CL6
In Stock
$15.99
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Part Number 64.2C6H
800MHz 200pin CL6
In Stock
$17.99
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Part Number 622C4H
533MHz 200pin CL4
In Stock
$24.99
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Part Number 622C6H
533MHz 200pin CL6
In Stock
$24.99
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Part Number 642C6H
800MHz 200pin CL6
In Stock
$24.99
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Part Number SSD/512G
Call to Order
$929.99
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Part Number SSD/512GH
Call to Order
$1499.99
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Part Number 622C4
533MHz 200pin CL4
In Stock
$15.99
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Part Number 622C6
533MHz 200pin CL6
In Stock
$15.99
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Part Number 642C6
800MHz 200pin CL6
In Stock
$15.99
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Part Number 622C4H
533MHz 200pin CL4
In Stock
$24.99
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Part Number 622C6H
533MHz 200pin CL6
In Stock
$24.99
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Part Number 642C6H
800MHz 200pin CL6
In Stock
$24.99
View Product
Part Number 621C4
533MHz 200pin CL4
In Stock
$7.99
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Part Number 621C6
533MHz 200pin CL6
In Stock
$7.99
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Part Number 641C6
800MHz 200pin CL6
In Stock
$7.99
View Product
Part Number 621C4H
533MHz 200pin CL4
In Stock
$12.99
View Product
Part Number 621C6H
533MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 641C6H
800MHz 200pin CL6
In Stock
$12.99
View Product
Part Number 62.5C6
533MHz 200pin CL6
In Stock
$6.99
View Product
Part Number 64.5C6
800MHz 200pin CL6
In Stock
$6.99
View Product
Part Number 62.5C6H
533MHz 200pin CL6
In Stock
$9.99
View Product
Part Number 64.5C6H
800MHz 200pin CL6
In Stock
$9.99
View Product
Part Number 62.2C6
533MHz 200pin CL6
Backordered
$4.99
View Product
Part Number 62.2C6H
533MHz 200pin CL6
Backordered
$7.99
View Product
Part Number 64.2C6
800MHz 200pin CL6
In Stock
$10.99
View Product
Part Number 64.2C6H
800MHz 200pin CL6
In Stock
$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
KVR533D2S4/1G 1GB DDR2 PC2-4200 533MHz SODIMM Kingston 621C4
KVR533D2S4/2G 2GB DDR2 PC2-4200 533MHz SODIMM Kingston 622C4
CT1190401 2GB DDR2 PC2-6400 800MHz SODIMM Crucial 642C6
CT1763868 512GB Solid State Drive Crucial SSD/512G