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Apple eMac G4/1.25 (USB 2.0) Specs

Identifiers: eMac USB 2.0 - M9425LL/A* - PowerMac6,4 - A1002 - None

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Apple eMacThe Apple eMac G4/1.25 (USB 2.0) features a 1.25* GHz PowerPC 7447a (G4) processor with the AltiVec "Velocity Engine" vector processing unit and a 512k on chip level 2 cache, 256 MB of PC2700 DDR SDRAM, a 40 GB or 80 GB Ultra ATA/100 hard drive, a tray-loading "Combo" or "SuperDrive" optical drive, ATI Radeon 9200 graphics with 32 MB of dedicated DDR SDRAM, as well as support for AirPort Extreme and Bluetooth (neither pre-installed) in an all-in-one case with a 17.0" (16.0" viewable area) CRT display (resolution support up to 1280x960 in 24-bit color).

The eMac G4/1.25 (USB 2.0) shipped with an ice white Apple "Pro" keyboard and mouse, and boots into MacOS X 10.3 "Panther" or later (it cannot boot into MacOS 9, although it is capable of running MacOS 9 applications within the MacOS X "Classic" environment provided by MacOS X 10.4.11 and earlier).

Compared to the eMac ATI Graphics, the USB 2.0 models have USB 2.0 ports, as the name implies, but also faster processors with larger level 2 cache, a faster system bus, faster RAM, a faster ATA bus, superior graphics, and Bluetooth support.

*Please note that there also is a 1.0 GHz variant of this model that was released exclusively to education.

Also see: What are the differences between the third generation "USB 2.0" eMac models?

Despite the age of this system, site sponsor Other World Computing has RAM, hard drives, SSDs, and other upgrades available for this specific Mac while supplies last.


  • Tech Specs
  • Ports
  • Popular Q&As

Click on the category for related details. The most commonly needed info is "open" by default, but all info is important.


April 13, 2004 May 3, 2005
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

Also see: All Macs introduced in 2004.
1 693
Details: This model only is compatible with the 32-bit Geekbench 2 benchmark. These numbers reflect an average of user provided 32-bit and 64-bit results as submitted to the Geekbench website. Higher numbers are better.

You also might be interested in reviewing all 32-bit Geekbench 2 user submissions for Macs with the PowerMac6,4 Model Identifier, which may include multiple models.

To dynamically compare Geekbench results from different Macs side-by-side, see EveryMac.com's Ultimate Mac Comparison.
1.25 GHz* PowerPC 7447a (G4)
Details: *Please note that there also is a 1.0 GHz education-only variant of this system.

The PowerPC G4 includes the AltiVec "Velocity Engine" vector processor.
Soldered Integrated
Details: The processor is mounted directly to the motherboard.
167 MHz 1.25 GHz (Built-in)
Details: N/A
Open Firmware 1 MB
Details: The Boot ROM is roughly 1 MB, other instructions are loaded into RAM.
64k 512k (on-chip)
Details: 512k on-chip level 2 cache runs at processor speed.
PC2700 SDRAM 333 MHz
Details: Supports 184-pin PC2700 (333 MHz) DDR SDRAM.

Also see: How do you upgrade the RAM in the eMac models? How much RAM of what type do these systems support?
256 MB 2 GB*
Details: *Officially, Apple supports up to 1 GB of RAM in this model, but third-parties have determined it actually supports 2 GB of RAM.

In the US (and many other countries, site sponsor Other World Computing sells memory -- as well as other upgrades -- for this eMac.

In Germany, site sponsor CompuRAM sells RAM and other upgrades for this eMac.

Also see: Actual Max RAM of All G3 & Later Macs.
None 2
Details: There are two user accessible 184-pin DIMM slots. As shipped, one slot is occupied by either a 128 MB or 256 MB memory module.
Radeon 9200 DDR SDRAM
Details: Shipped with an "ATI Radeon 9200; 32 MB dedicated DDR SDRAM graphics memory."

Also see: What type of video processor is provided by the eMac? Is it upgradable?
32 MB 32 MB
Details: The video cannot be upgraded.
17.0" Flat CRT 1024x768*
Details: *The 17.0" flat CRT display has a 16.0" viewable area, a 0.25mm dot pitch, and supports "640 by 480 pixels at 120 Hz, 800 by 600 pixels at 120 Hz, 1024 by 768 pixels at 89 Hz, 1152 by 870 pixels at 80 Hz, [and] 1280 by 960 pixels at 72 Hz" resolutions.
Mirroring Only* 1280x960*
Details: Apple reports that this system has a "mini-VGA output port" that with the purchase of an adapter can mirror the contents of the internal display on an external one.

However, the hardware is capable of using an external display in dual or "extended desktop mode", Apple just blocked the capability in firmware to protect sales of more expensive Macs. Unsupported third-party hacks are available.
40, 80 GB N/A
Details: The "Combo" drive configuration (M9425LL/A) shipped with a 40 GB drive and the "SuperDrive" configuration (M9461LL/A) an 80 GB drive.

This model supports hard drives larger than 128 GB.

Also see: How do you replace or upgrade the hard drive in the eMac models?

In the US (and many other countries), site sponsor Other World Computing sells storage upgrades for this eMac.

Also see: SSD Compatibility Guide for All G3 & Later Macs.
3.5" (25.4 mm) Ultra ATA/100
Details: This model supports a single Ultra ATA/100 (ATA-6) 3.5" hard drive or SSD.
8X "Combo Drive"* None
Details: M9425LL/A shipped with a DVD-ROM/CD-RW combo drive that "reads DVDs at up to 12x speed, writes CD-R discs at up to 32x speed, writes CD-RW discs at up to 10x speed, [and] reads CDs at up to 32x speed", and M9461LL/A shipped with a DVD-R/CD-RW SuperDrive that "writes DVD-R discs at up to 8x speed, reads DVDs at up to 10x speed, writes CD-R discs at up to 24x speed, writes CD-RW discs at up to 10x speed, [and] reads CDs at up to 32x speed."

Also see: What are the capabilities of the optical drive provided by the eMac models? How do you replace or upgrade the optical drive?
56k v.92 10/100Base-T
Details: Internal 56k v.92 modem and 10/100Base-T Ethernet standard.
802.11b/g (Optional) 1.1 (Optional)
Details: This model could be configured with AirPort Extreme (802.11b/g) and Bluetooth 1.1 at the time of purchase at additional cost.
3 (2.0) 2 (400)
Details: This system has three USB 2.0 ports and two Firewire "400" ports (eight watts shared). Apple advertised that this computer also had two USB 1.1 ports on the keyboard.
AP/BL None
Details: This model has "built-in antennas and [a] card slot for [an] optional 54-Mbps AirPort Extreme Card" and an "optional internal Bluetooth module."
Apple Pro Keyboard Apple Pro Mouse
Details: N/A
All-in-One eMac
Details: Accommodates a 17" CRT, but is slightly less deep than the original iMac CRT model which only had a 15" CRT.
M9425LL/A* eMac USB 2.0
Details: M9425LL/A refers to the "Combo" drive configuration with a 40 GB hard drive and M9461LL/A refers to the "SuperDrive" configuration with an 80 GB hard drive.
A1002 (EMC None) PowerMac6,4
Details: Please note that these identifiers refer to more than one model.

Also see: All Macs with the A1002 Model Number, the None EMC Number, and the PowerMac6,4 Model Identifier.

For more about these identifiers and how to locate them on each Mac, please refer to EveryMac.com's Mac Identification section.
3.6V Lithium N/A
Details: N/A
X 10.3.3 (7G21) X 10.5.8
Details: This system cannot run versions of MacOS X more recent than 10.5.8.
Classic Mode Only* Emulation Only
Details: *This model is capable of using Mac OS 9 applications within the Mac OS X "Classic" environment provided with Mac OS X 10.4.11 "Tiger" and lower ("Classic" is not supported starting with Mac OS X 10.5 "Leopard"). It cannot boot into Mac OS 9.
15.8 x 15.8 x 17.1 50 lbs. (22.7 kg)
Details: *In inches - height x width x depth (40.6 cm, 40.6 cm, 43.3 cm).
US$799, US$999* N/A
Details: *The configuration with a "Combo" drive and 40 GB hard drive (M9425LL/A) sold for US$799, and the configuration with a "SuperDrive" and an 80 GB hard drive (M9461LL/A) sold for US$999.

Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple Computer.


Click on a category for additional details. The most commonly needed info is "open" by default, but all info is important. The icons correspond with the icons for each port on the computer.


1 (Mini-VGA) None
Details: N/A
None None
Details: N/A
None None
Details: N/A
3 (2.0) 2 (400)
Details: This system has three USB 2.0 ports and two Firewire "400" ports (eight watts shared). Apple advertised that this computer also had two USB 1.1 ports on the keyboard.
1 (RJ-11) 1 (RJ-45)
Details: N/A
None 1*
Details: *S-video and composite video out provided by an adapter, sold separately.
1 (Built-in) 1
Details: Built-in microphone and an "analog audio input minijack, up to 16-bit stereo".
1 1
Details: Single "mini headphone" jack for audio out capabilities.
1 None
Details: N/A
1 N/A
Details: 110V to 240V AC, 170W maximum.

Ten of the most popular Q&As about the eMac models follow.



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