FEATURES AND SPECIFICATIONS
Silent Drive is a thermal and acoustic enclosure designed to reduce the noise of a hard drive by more than 90% while still
maintaining the drive’s required ambient operating temperatures. A dense acoustical barrier and a thin decoupling foam line the
inside of the enclosure and prevent the transmission of noise outside the enclosure. Thermally conductive cold plates transfer the
heat generated by the hard drive inside SilentDrive’s enclosure to the ambient air within the PC chassis. SilentDrive can be
installed as original equipment by PC manufacturers or retrofitted into existing PCs by end users.
For reference, the typical noise level in a quiet room is 28 dBA. The noisiest of hard drives, in the 36 to 38 dBA range, will be
quieted to just below 30 dBA while others will be quieted to 28 dBA or less. (Note that a 3dBA reduction equates to a 50%
reduction in noise.)
Features and Benefits
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Silences hard drive noise. The hard drive emits noise
generally between 1 and 2 kHz, the most sensitive range
of the human ear. Eliminating this noise with SilentDrive
allows PCs to be used as a 24 hour appliance without
intruding into the user’s environment.
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High consumer acceptance
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Maintains drive operating specifications. Thermally
conductive aluminum plates ensure that the hard drive’s
operating temperature requirements are met, with no
degradation in performance, under elevated temperature
and load conditions in a host PC.
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No performance degradation
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SilentDrive installs easily into any standard 133.35mm
(5.25") bay of a PC. The product comes complete with all
required mounting hardware
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Easy assembly into PC chassis
Mechanical
Weight: 18.6 oz. (526g)
Enclosure Material: ABS
Enclosure Material Rating: UL 94V-0
Acoustic Barrier Foam Material Rating: UL 94V-0
Decoupling Foam Material Rating: UL 94HF-1
Compatible Drives
Disk Size: 88.90mm (3.50")
Drive Height: 25.40mm (1.00")
Max. Spindle Speed: 5400 RPM
Thermal Acoustic P
SilentDrive™
Applications
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Multimedia/Entertainment
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Audio/Video Production
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Programmers
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SOHO
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Education
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Libraries
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Reservation Desks
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Hospital
FEATURES AND SPECIFICATIONS
Drive Compatibility
The acoustic performance of SilentDrive is compatible with all available hard disk drives. SilentDrive is also compatible with all
88.90mm (3.50") hard disk drives with a maximum height of 25.40mm (1.00"). The limiting factor in SilentDrive’s compatibility
with hard disk drives is the maximum heat dissipated by the drive.
SilentDrive has the thermal capacity to cool hard disk drives that dissipate up to 5W of heat. However, drive manufacturers do
not readily specify the heat dissipation of their drives. Therefore, Molex has established the drive’s spindle speed as a proxy for
heat dissipation. SilentDrive is specified to operate with hard drive spindle speeds of up to 5400 rpm. Whether the hard drive is
an IDE or SCSI type is not relevant to the heat dissipation limitation. However, most SCSI drive spindle speeds are higher than
5400 rpm and therefore are not generally considered compatible with SilentDrive.
Thermal Acoustic P
SilentDrive™
ORDERING INFORMATION
Order Number
37047-0001
Description
Acoustical enclosure for HDD
Americas Headquarters
Lisle, Illinois 60532 U.S.A.
Tel:1-800-78MOLEX
Fax:630-969-1352
Far East North Headquarters
Yamato, Kanagawa, Japan
Tel:81-462-65-2324
Fax:81-462-65-2366
Far East South Headquarters
Jurong, Singapore
Tel:65-268-6868
Fax:65-265-6044
European Headquarters
Munich, Germany
Tel:49-89-413092-0
Fax:49-89-401527
Corporat
2222 Well
Lisle, IL 60
Tel:630-96
Visit o ur W eb site at h ttp :/ / www.molex .com
Order No. USA-150
Printed in USA/1000/JI/JI/2001.03
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