40/20MHz (4) 400 MHz (1) 4000 (16) 4000 rpm (7) 4000 RPM max. (3) 4000 RPM to 14800 RPM (4) 4000 RPM to 17500 RPM (1) 4000, 4000 rpm (2) 4000MIPS (3) 400kHz, 1MHz (3) 400MHz (25) 400MHz, 1.3GHz (1) 40MHz (145) 40pF @ 4V, 1MHz (1) 41.2 Gbps (4) 41.667MHz (2) 410/180/275/140 RPM (1) 4100 RPM (1) 4266 (18) 4267 (1) 4270 RPM (2) 43/38/35/31/27/23 RPM (1) 4300 RPM (1) 4400 (1) 4400 RPM (1) 44MHz (3) 450 RPM (3) 450, 200, 300, 150 RPM (2) 4500 (1) 4500 RPM (8) 4500 rpm [Max] (10) 450MHz (1) 450MHz, 1.08GHz (1) 45MHz (8) 4600 (1) 4600 RPM (2) 467 rpm (8) 48 MHz (16) 48 MIPS (3) 480 Mbps per port (8) 4800 (24) 4800 rpm (4) 480Mbps (1) 480MHz (3) 48MHz (241) 4MHz (58) 4X (16) 5 MBps (2) 5 RPM (2) 5,000mm/min max (2) 5.24 in/s (133.0 mm/s) (1) 50 MIPs (5) 500-3000 (2850 for 50Hz. (18) 500/300/350 rpm (3) 5000 (1) 5000 RPM (3) 5000 to 35000 RPM (1) 500MHz (6) 500MHz, 1.2GHz (6) 500MHz, 600MHz, 1.2GHz (1) 50MHz (164) 51.34MHz (2) 52 rpm (1) 5200 (4) 5200 RPM (1) 525/235/350/175 RPM (2) 528MHz (1) 52x (63) 532MHz (2) 533MHz (4) 533MHz, 1.333GHz (3) 533MHz, 600MHz, 1.3GHz (3) 533MT/s (4) 54 RPM (3) 54MHz (8) 5500 RPM (1) 55MHz (6) 56 (1) 5600 RPM (1) 56MHz (9) 5800 rpm [Max] (2) 5MHz (11) 6 " (3) 60 fpm (6) 60 Hz (2) 60 MIPs (33) 60 rpm (2) 600 (3) 600 rpm (7) 600 rpm [Max] (1) 600 to 2,500 rpm (2) 600/350/450 rpm (1) 6000 (2) 6000 rpm (21) 6000 rpm [Max] (21) 600MHz (22) 600MHz, 1.3GHz (2) 600MHz, 1.4GHz (2) 60MHz (12) 6300 RPM (3)