PowerBook 520

M4880 · 1994–1995 · laptop

Specifications

Cpu: Motorola 68LC040 25 MHz (50/25 MHz)
Ram: max: 36 MB (4 MB onboard plus one expansion card) · base: 4 MB
Ports: Serial (RS-422) · HDI-30 SCSI · ADB · Ethernet (AAUI) · Video out · PDS slot (modem/expansion)
Battery: NiMH, dual battery bays (one battery standard)
Display: 9.5" 640×480 passive matrix, 4-bit grayscale
Storage: base: 160 MB SCSI HDD · options: 240 MB SCSI HDD · 320 MB SCSI HDD
Weight: 2.9 kg
Os Support: latest: Mac OS 8.1 · shipped: System 7.1.1
Release Price: $2,269

Revisions

5201994, grayscale passive-matrix display

520c1994, color passive-matrix display

Storage

160MB1994 base HDD tier

240MB1994 upgraded HDD tier

RAM

36 MB via one proprietary expansion card · Single slot; 500-series-specific modules.

MODERATE

CPU

PowerPC 603e 100 MHz upgrade card (Apple/Newer Technology) · Official daughtercard swap turned the 500 series into a PowerPC machine.

MODERATE

storage

Larger 2.5" SCSI drive or SCSI2SD solution · Standard 2.5" SCSI bay.

MODERATE