Apple Multiple Scan 20 Display vs Apple Studio Display (21-inch CRT, 1999)

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Multiple Scan 20 Display compared with Studio Display (21-inch CRT, 1999)

	AppleMultiple Scan 20 Display	AppleStudio Display (21-inch CRT, 1999)
Overview
Released
Released	March 1994	January 1999
Display
Screen size
Screen size	19.1″	19.8″
Panel
Panel	CRT (Original nominal 20-inch Trinitron CRT, 19.1-inch viewable image and 0.31 mm stripe pitch; no fixed native matrix. Later Revision B uses a different 0.26 mm tube and is not substituted here.)	CRT (Nominal 21-inch Sony Trinitron aperture-grille CRT with a 19.8-inch viewable image; 0.25–0.27 mm variable aperture grille pitch. Vertically flat screen, without a fixed native pixel matrix.)
Pixel pitch
Pixel pitch	–	Variable 0.25–0.27 mm aperture grille pitch
Supported signal modes
Supported signal modes	Apple's support sheet lists 640 × 480 at 59.95, 66.7 or 75 Hz; 800 × 600 at 75 Hz; 832 × 624 at 75 Hz; 1024 × 768 at 74.93 or 75 Hz; 1152 × 870 at 75 Hz; and 1280 × 1024 at 75 Hz. Service Source gives horizontal scan range 29–82 kHz and vertical range 50–150 Hz. These are supported CRT signal modes, not a native pixel matrix or native refresh rate; modes depend on the computer and adaptor.	Supports 1600 × 1200, 1280 × 1024 and 1024 × 768 at up to 85 Hz; 1152 × 870 and 832 × 624 at up to 75 Hz. Horizontal scan 31–107 kHz; vertical scan 48–120 Hz. These are selectable CRT signal modes, not a fixed native matrix or one native refresh rate.
Screen coating
Screen coating	Bonded glass panel with multilayer antiglare and antistatic coating	Antireflective and antistatic screen coating
Calibration
Calibration	–	Internal measurement system adjusts the electron beam to maintain factory calibration; stores ColorSync profiles. Includes an ambient-light tool, variable 4100–9300 K white-point selection and gamma-curve adjustment.
Connections
Video inputs
Video inputs	DA-15	VGA
USB-C charging
USB-C charging	None	None
USB ports
USB ports	–	4 × USB-A
Other connections
Other connections	Macintosh 15-pin DA-15 analogue RGB cable; VGA computers need a video adaptor. Two front ADB device ports and rear ADB pass-through port.	15-pin mini D-Sub VGA video connector with supplied VGA-to-Macintosh adaptor
Design
Stand adjusts
Stand adjusts	Tilt, swivel	–
Weight with stand
Weight with stand	30 kg	35 kg
Tilt
Tilt	−5° to +15°	–
Swivel
Swivel	At least ±45°	–
Size with stand
Size with stand	Apple support publishes 18.7 × 18.7 × 19.7 inches (height × width × depth); Service Source separately lists 474 × 474 × 501.5 mm	51.1 × 56.6 × 55 cm (width × height × depth), January 1999 Blueberry datasheet; later Graphite enclosure dimensions differ
Weight detail
Weight detail	Service Source gives monitor weight 30 kg (66 lb), distinct from the 36 kg boxed shipping weight. The later 1995 Apple Facts sheet for the 0.26 mm tube instead gives 29.7 kg.	–
Controls
Controls	Front-panel power, reset, brightness and contrast; image position, size, rotation, convergence and colour-temperature controls. Automatic power-on degauss.	Power, brightness and contrast; compatible Mac software supplies geometry, convergence, degauss, white-point and calibration adjustments
Colours
Colours	–	Translucent Blueberry and white enclosure
Power and support
Power use
Power use	Maximum 165 W; less than 15 W in Energy Saver mode	Maximum 180 W operating; less than 30 W standby; less than 5 W when the computer is in energy-saving mode
Power supply
Power supply	Service Source specifies 90–132 or 198–264 V AC, 47–63 Hz; support archive instead gives the upper band as 198–260 V. These are mains ratings.	90–264 V AC, single-phase 47–63 Hz; mains frequency is separate from display refresh
Software
Software	System 7.1 or later; older Macs may need additional adaptors. Apple support identifies March 1994 introduction, and InfoWorld's 14 March 1994 shipping section reports rollout that week; month precision retained. Service Source distinguishes original 0.31 mm hardware from later Revision B 0.26 mm hardware with different deflection board, controller and power supply. No Revision B retail date is inferred. Brightness and contrast ratio are unpublished.	Maker announced the new Studio Display family on 5 January 1999; January retail precision is used because a distinct first-sale day is unconfirmed. January M6204LL/A datasheet requires the new Power Macintosh G3 with built-in USB and Mac OS 8.0 or later. Brightness and contrast ratio are unpublished and omitted; no pixel density is assigned to this CRT.
In the box
In the box	–	Display, Apple Displays software, VGA-to-Macintosh adaptor, power cord, ambient-light tool and setup guide
Certifications
Certifications	US EPA Energy Star power conservation	–