Macintosh PowerBook 3400c/240 (16 MB, 3 GB, CD 12x) (1997)
The Macintosh PowerBook 3400c/240 uses a 240 MHz PowerPC 603e with 16 MB installed RAM and an internal 3 GB IDE disk. This entry keeps the combination documented by Apple separate from other capacities or equipment.

Resized, no crop or retouching.
Original labelled schematic, not a photograph or scale drawing.
Specs
| CPU | PowerPC 603e · 240 MHz |
| Installed RAM | 16 MB |
| Maximum RAM | 144 MB |
| ROM | 4 MB |
| Internal disk | 3 GB · IDE |
| Display | 12.1 in · TFT |
| Display modes | 800 × 600 · thousands of colors |
| Battery | Li-ion |
| Included CD-ROM | 12x |
| L2 | 256 KB |
| VRAM | 1 MB |
| Ethernet / modem | 10BASE-T · 33.6 kbps |
History and documentation
The Macintosh PowerBook 3400c/240 uses a 240 MHz PowerPC 603e with 16 MB installed RAM and an internal 3 GB IDE disk. This entry keeps the combination documented by Apple separate from other capacities or equipment.
Design and specifications
The installed 16 MB can expand to 144 MB with compatible memory; ROM is 4 MB and L2 cache is 256 KB. It includes a removable CD-ROM rated up to 12x. The removable 1.44 MB Apple SuperDrive floppy and CD module share one bay, not two drives operating simultaneously inside it.
Use and context
The backlit 12.1-inch TFT screen displays thousands of colors at 800 × 600 pixels. The order sheet specifies 1 MB VRAM; external-monitor modes do not replace the panel resolution. It offers VGA output, ADB, RS-422 serial with LocalTalk, HDI-30 external SCSI and infrared. Two PC Card slots accept two Type I/II cards or one Type III.
Notes and image
It includes 10BASE-T Ethernet and a 33.6 kbps modem. Keyboard and trackpad with tapping and dragging are built in. Four speakers and a microphone accompany 16-bit stereo sound input and output. The main battery is lithium-ion, not confused with the backup battery. The original labelled schematic is not a photograph or scale drawing.
Sources
- Apple · PowerBook 3400 · Technical Information
- Apple · PowerBook 3400 · Developer Note
- Apple · PowerBook 3400c / g3 · Service Source
- dimensionapple.com · Original schematic illustration
- macintosh-powerbook-3400c-200-1997
- macintosh-powerbook-3400c-200-1997 ⇄ Macintosh PowerBook 3400c/240 (16 MB, 3 GB, CD 12x)