What SSD is compatible with the Apple iMac G5 20-inch?

The Apple iMac G5 20-inch supports 2.5-inch PATA PATA/IDE across 1 slot SSDs. Compatible modules with live pricing are listed above.

Can I upgrade the SSD in my Apple iMac G5 20-inch?

Yes, the Apple iMac G5 20-inch supports SSD upgrades. It has 1 slot supporting 2.5-inch PATA form factor drives.

2004–2005

Form Factor: 2.5-inch PATAInterface: PATA/IDEMax Capacity: 0.25TB

Upgradeable

Kingspec 128GB 2.5-inch PATA SSD
(KSD-PA25.6-128MS)
2.5-inch PATAPATA/IDERead 100 MB/sWrite 90 MB/s120GB
HIGH
Kingspec 256GB 2.5-inch PATA SSD
(KSD-PA25.6-256MS)
2.5-inch PATAPATA/IDERead 100 MB/sWrite 90 MB/s250GB
HIGH

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This device uses a 2.5-inch PATA drive with a PATA/IDE interface. Maximum supported capacity is 0.25TB.

This is a legacy IDE/PATA interface. Modern SSDs with IDE adapters are available and provide a significant speed boost for vintage systems.

Always power off your device and disconnect power before replacing storage.