PowerBook Buyer's Guide

PowerBook Duo 2300c

by Steve Hildreth

The 2300c was the first, and last, PowerPC Duo. The 2300c retained all the docking options available to the 200-series Duos, and their lightweight, while adding a 100 MHz PowerPC processor, a 9.5 inch active-matrix color screen, and an improved double-clickable trackpad. This was almost the ultimate Duo for the discriminating road warrior, lacking only a faster processor and a larger screen. The Duo series was superceded by the 2400c, which was a different interpretation of the lightweight subnotebooks, and one that didn't need docking. For those who need a portable while on the road, but use their desktop machines while at home, the lightweight 2300c is hard to beat, especially on the used market at prices that are half that of the 2400c.


At the time: A-


  • Introduced 8/28/95
  • 100 MHz PowerPC 603e processor
  • No L2 cache
  • 8MB RAM standard, maximum 56MB
  • Internal 750MB or 1.1GB hard disk drive
  • Optional external Apple SuperDrive 1.4MB floppy disk drive
  • No CD-ROM drive
  • Optional internal PowerBook Express 14.4 Modem
  • System 7.5 installed


  • internal modem
  • processor direct slot (PDS) for dock or floppy drive
  • 1 serial


  • Active-matrix 1000s colors
  • 9.5"
  • 640x480 resolution


  • 4.8 pounds


  • Nickel-metal-hydride high-capacity Type III battery provides 2 to 4 hours of use before recharge
  • Battery recharges in 2 hours while computer isshut down or in sleep mode, 4 hours while running


  • Apple Sound Chip provides monophonic 8-bit sound, capable of driving stereo headphones or external speakers with the same signal supplied to both channels through optional PowerBook Duo Dock Plus
  • Built-in speaker and integrated microphone
  • Sound input: 4-voice sound with 8-bit analog-to-digital conversion, recording at 11- or 22-kHz sampling rate


  • Height: 1.5 in. (3.8 cm)
  • Width: 10.9 in. (27.7 cm)
  • Depth: 8.5 in. (21.6 cm)

Apple's Specifications:

Logic Board Ports Power
Processor: 603e, 100 MHz
PMMU: integrated
FPU: integrated
Data Path: 64-bit, 33 MHz
L1 Cache: 32K
L2 Cache: none
2nd Processor: none
Slots: modem, dock
ADB: none
Video: none
Floppy: none
SCSI: none
Geoports: none
Ethernet: none
Mic Type: none
Other Ports: Printer,
Max Watts: 36
Amps: 1.50
BTU per Hr: 123.12
Voltage: 100-240
Freq Range: 50-60 Hz
Battery Type: Duo, NiMH Type III
Soft Power: yes
Memory Video Memory
Logic Board: 8 MB
RAM Slots: 1, Duo
Min - Max RAM: 8 MB - 56 MB
Min RAM Speed: 70 ns
RAM Sizes: 4-48 MB
Install in Groups of: 1
Resolution Video Memory
built-in LCD screen
(built in)
512 x 384 n/a-bit
640 x 400 16-bit
640 x 480 8-bit
800 x 600 n/a-bit
832 x 624 n/a-bit
1024 x 768 n/a-bit
1152 x 870 n/a-bit
1280 x 1024 n/a-bit
Physical Software Storage
Introduced: 8/28/1995
Discontinued: n/a
Form Factor: PowerBook Duo
Gestalt ID: 118
Weight (lbs): 4.8
Dimensions (in): 1.5 H x 10.9 W x 8.5 D
Addressing Modes: 32-bit
Orig SSW: 7.5.2
Orig Enabler: PowerBook 5300/2300/190 Enabler
ROM ID: $077D
ROM Ver: $2A
ROM Size: 4MB
AppleTalk Ver: 58.1.6
Mac OS
Floppy Size: none
Floppy Inject: n/a
Min. Int HD Size: 750MB-1.1GB
Int HD Interface: SCSI & IDE
Orig CD Speed n/a
Int CD Support: