Seagate ST3146855LW ユーザーズマニュアル

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

33

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.

See Section 3.1.2.

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

J

H

L

B

S

K

[1]

F

[1]

D

E

P

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).

[1]

-X-

U

-Z-

T

//

-Z-

A

M

C

R REF

-Z-

V

-X-

Inches

A
B
C
D
E
F
H

J

K

L

M

P
R
S
T
U
V

26.10

147.00
101.60

95.25

3.18

44.45
28.50

101.60

6.35

41.60

4.60

41.28
46.13

8.00
0.38
0.38
6.73

1.028
5.787
4.000
3.750

.125

1.750
1.122
4.000

.250

1.638

.181

1.625
1.816

.315
.015
.015
.265

max   
max   

± .010
± .010
± .010
± .010
± .020
± .010
± .010
± .010
± .020
± .020

max   
max   

± .010

max   
max   

± .25  

  ± .25  

 ± .25  

± .25  
± .50  
± .25  
± .25  
± .25  
± .50  
± .50  

  
  

max   
max   

± .25  

Millimeters

REF