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1.25GHz or 1.25GHz Dual
Dimensions & Weight
  • 17.0" (H) x 8.9" (W) x 18.4" (D)
    (43.2cm x 22.7cm x 46.8cm)
  • 42 lb. (19.1 kg)
  • 1.25GHz PowerPC G4 processor
  • Dual 1.25GHz PowerPC G4 processors (build-to-order option)
  • Velocity Engine for 128-bit single-instruction, multiple data (SIMD) processing
  • Full 128-bit internal memory data paths
  • Powerful floating-point unit supporting single-cycle, double-precision calculations
  • Data stream prefetching operations supporting four simultaneous 32-bit data streams
  • 256K on-chip L2 cache running at processor speed
  • 1MB DDR SRAM L3 cache per processor (2MB DDR SRAM L3 cache per processor with dual 1.25GHz PowerPC G4 build-to-order option)
  • 167MHz system bus supporting over 1.3GBps data throughput
  • 256MB of PC2700 (333MHz) DDR SDRAM main memory supporting up to 2.7GBps throughput
  • Four DIMM slots supporting up to 2GB of DDR SDRAM using one of the following
    • 256MB DIMMs (64-bit-wide, 128 or 256 Mbit)
    • 512MB DIMMs (64-bit-wide, 256 Mbit
Graphics and displays
  • ATI Radeon 9000 Pro graphics card with 64MB of DDR SDRAM preinstalled in a dedicated AGP 4X graphics slot
  • NVIDIA GeForce4 Titanium graphics card with 128MB of DDR SDRAM (build-to-order option)
  • Support for digital resolutions up to 1920 by 1200 pixels; analog resolutions up to 1600 by 1200 pixels
  • ADC and DVI connectors; DVI to VGA adapter included
  • Dual display support for extended desktop and video mirroring modes
  • Support for up to two Apple flat-panel displays
Peripherals and audio
  • Two FireWire 400 ports (15W total power)
  • Four USB ports (two on system, two on keyboard)
  • Front headphone jack and speaker
  • Stereo analog audio line in and line out minijacks
  • Apple speaker minijack for connection to optional Apple Pro Speakers
  • 10/100/1000BASE-T Ethernet connector (RJ-45)
  • Built-in antennas and expansion slot for optional 11-Mbps AirPort Card (based on 802.11b Wi-Fi certified)
  • Built-in 56K v.92 modem
Included software
Mac OS X v10.2 "Jaguar", Mac OS 9
Storage and expansion

Four 3.5-inch hard drive expansion bays:

  • One 80GB 7200-rpm Ultra ATA/100 drive preinstalled (160GB build-to-order option)
  • Support for up to four internal ATA drives (two Ultra ATA/100 and two Ultra ATA/66)
  • Support for up to four internal SCSI drives (requires third-party solution not offered by Apple
  • Support for a combination of internal SCSI and ATA drives (total of four, requires third-party solution not offered by Apple)

Four open, full-length 64-bit, 33MHz PCI slots


Optical drive

Two optical drive bays:

  • Combo drive (DVD-ROM/CD-RW) preinstalled; reads DVDs at 12x speed, writes CD-R discs at 32x speed, writes CD-RW discs at 10x speed, reads CDs at 32x speed
  • SuperDrive (DVD-R/CD-RW); writes DVD-R discs at 4x speed, reads DVDs at 8x speed, writes CD-R discs at 16x speed, writes CD-RW discs at 8x speed, reads CDs at 32x speed (build-to-order option)
  • Optional Combo drive in second optical drive bay
Electrical and environmental requirements
  • Meets ENERGY STAR requirements
  • Line voltage: 100-120V AC or 200V-240V AC
  • Frequency: 50Hz to 60Hz single phase
  • Maximum current: 6.5A (low voltage range) or 3.5A (high voltage range)
  • Operating temperature: 50° to 95° F (10° to 35° C)
  • Storage temperature: -40° to 116° F (-40° to 47° C)
  • Relative humidity: 5% to 95% noncondensing
  • Maximum altitude: 10,000 feet


  Single 1.25GHz Build-to-order Options
Processor 1.6GHz PowerPC G4 Dual 1.25GHz PowerPC G4 processors
L3 cache 1MB DDR SRAM 2 MB DDR SRAM per processor
System bus 167MHz
Memory 256MB PC2700 (333MHz) DDR SDRAM; 2GB maximum 512MB, 1GB, 1.5GB, 2GB
Graphics support ATI Radeon 9000 Pro with 64MB DDR SDRAM and full dual display support NVIDIA GeForce4 Titanium with 128MB DDR SDRAM
Hard disk drive 80GB Ultra ATA/100; 7200 rpm 160GB Ultra ATA/100 (7200 rpm)
Optical drive Combo (DVD-ROM/CD-RW) SuperDrive (DVD-R/CD-RW)
Expansion slots and bays Four open full-length 64-bit, 33MHz PCI slots; AGP 4X slot with graphics card installed; four DIMM slots; four internal hard drive bays (one occupied); two optical drive bays (one occupied)
Ports Two FireWire 400, four USB ports (two on system, two on keyboard), front headphone minijack and speaker, rear Apple speaker minijack, analog audio line in and analog audio line out minijacks, ADC and DVI connectors for dual display support
Networking Built-in 10/100/1000BASE-T Ethernet, AirPort ready, v.92 56K modem
Hardware accessories Apple Pro Keyboard, Apple Pro Mouse, USB keyboard extension cable, DVI to VGA adapter, modem cable