Seagate ST373455LC, ST3146855LC, ST3146855LW, ST3300655LW manual Mechanical specifications, Acoustics

7.4.7Acoustics

Sound power during idle mode shall be 3.7 bels typical when measured to ISO 7779 specification. Sound power while operating shall be 4.3 bels typical when measured to ISO 7779 specification.

There will not be any discrete tones more than 10 dB above the masking noise on typical drives when mea- sured according to Seagate specification 30553-001. There will not be any tones more than 24 dB above the masking noise on any drive.

7.4.8Electromagnetic susceptibility

See Section 3.1.2.

7.5Mechanical specifications

The following nominal dimensions are exclusive of the decorative front panel accessory. However, dimensions of the front panel are shown in figure below. Refer to Figures 8 and 9 for detailed mounting configuration dimensions. See Section 9.4, “Drive mounting.”

Height (max):	1.028 in.	26.11 mm
Width (max):	4.010 in.	101.85 mm
Depth (max):	5.787 in.	146.99 mm
Weight (max):	1.85 pounds	0.839 kilograms

S REF

// T -Z-

	K
[1]	-Z-
	L

H J

B

A

-Z-

M

U -X-

P

F [1]

R REF

V

C

-X-

Notes:

[1]Mounting holes are 6-32 UNC 2B, three on each side and four on the bottom. Max screw penetration into side of drive is 0.15 in. (3.81 mm). Max screw tightening torque is 6.0 in-lb (3.32 nm) with minimum full thread engagement of 0.12 in. (3.05 mm).

Dimension Table

	Inches		Millimeters
A	1.028	max	26.10	max
B	5.787	max	147.00	max
C	4.000	± .010	101.60	± .25
D	3.750	± .010	95.25	± .25
E	.125	± .010	3.18	± .25
F	1.750	± .010	44.45	± .25
H	1.122	± .020	28.50	± .50
J	4.000	± .010	101.60	± .25
K	.250	± .010	6.35	± .25
L	1.638	± .010	41.60	± .25
M	.181	± .020	4.60	± .50
P	1.625	± .020	41.28	± .50
R	1.816		46.13
S	.315		8.00
T	.015	max	0.38	max
U	.015	max	0.38	max
V	.265	± .010	6.73	± .25

E

D

Figure 8. LW mounting configuration dimensions

Cheetah 15K.5 SCSI Product Manual, Rev. J 33