Atari OEM Atari CO17945 400/800/1200XL Computer & 822, 850, 1010, 1020, 810/1050/XF551 Drives Power Supply Atari Power Supply 9 VAC 31 VA (3.4 A) Atari 400/800/1200lXL Computer compatible Atari 810/1050/XF551 Atari Disk Drive Compatible Atari 1010 Cassette Recorder, 822, 1020 printers, 850 interface module compatible