Visual Art

Western Digital Caviar

model number		AC14300	AC420400	WD43AA	WD64AA	WD75AA	WD84AA	WD102AA	WD136AA	WD153AA	WD153AA	WD172AA	WD181AA	WD205AA	WD205AA	WD272AA	WD307AA	WD450AA	WD102BA	WD136BA	WD153BA	WD205BA
capacity	GB	4.3	20.4	4.3	6.4	7.5	8.5	10.3	13.6	15.4	15.3	17.2	18.1	20.5	20.5	27.2	30.8	45.0	10.3	13.7	15.4	20.5
buffer size	kB	512	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048	2048
heads		2	8	1	2	1	2	2	4	3	2	4	4	6	4	6	6	6	2	3	3	4
areal density	MB/in²
track density	tpi
recording density	kbpi
average seek	ms	9.50	9.00	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	9.50	8.90	8.90	8.90	8.90
rotation speed	RPM	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	5400	7200	7200	7200	7200
media rate (max.)	MB/s	21.43	24.51	30.50	29.20	37.62	30.50	29.20	29.20	29.20		30.50	30.50	29.20		29.20	33.88	37.62	38.00	38.00	38.00	38.00