Monday, October 20, 2014
Search
  
Most Popular
Hardware Reviews
General Computing
WEB Reviews
Seagate Enterprise Capacity 3.5 V.3 4TB SAS 6Gb/s HDD Review
OCZ Vector 256GB SSD Review @ Custom PC Review
Gigabyte F2A85XM-D3H
NZXT Phantom 630
Auvio Bluetooth Portable Speaker Review
Corsair H90 CPU Cooler Review
BIOSTAR Hi-Fi Z77X (Intel Z77) Motherboard Review
Noctua NH-L9i Cooler Review on Technic3D
Breaking News
Microsoft To Launch A Wearable Device Soon
FCC To Explore High-frequency Wireless Technologies
Mozilla Hello Offers Voice and Video Calls Through The Browser
Samsung Adds Intel Processor To Chromebook 2
LG Ultra-Portable HD MiniBeam Projector Features Built-in Battery
Tweets To Feature Audio
New 64-bit Exynos 7 Octa Processor Supports Iris Recognition
Asus ROG Announces GR8 Gaming Mini-PC
Home > Hardware Reviews > General Computing

Monday, August 08, 2005
Teac HD 15OT & HD-15 PUK A

1. Introduction

Storage is becoming more and more important in our everyday computer use. The demand for larger capacity is growing as well as the need for portable storage solutions, primarily for backup use. After the initial release of 2.5" hard disk drives, many manufacturers have started providing either cases to house these drives or complete portable storage solutions. TEAC is one such manufacturer who has been releasing such devices for quite a while now.

We received two external hard disk drive enclosures, complete with Hard Disk Drives installed, from TEAC for evaluation in our labs.

- HD 15OT

The HD 15OT is an external hard disk drive enclosure with a USB 2.0 interface for storage of data, photos, music, in fact any type of file. The "One Touch Button" program, available only for Windows, allows for backup, restore and synchronisation of files with the push of a single button found on the front of the HD 150T. The device is available with one of 40, 60, 80 or 100 GB capacity hard disk installed.

 Specifications for HD 15OT
Data transfer rate max. 480 MB/s (USB 2.0 limit)
Seek time (average) 15 ms
Interface USB 2.0/1.1
Cache 8 MB
Dimensions (W x H x T) 82 x 128 x 17 mm
Weight approx. 130g
MTBF 100.000 POH
Contents External TEAC 2.5 inch HDD, Software, CD-ROM with Drivers, USB 2.0 cable, Multi-lingual installation manual
System requirements Windows systems: IBM PC compatible Pentium III 600MHz or higher; 64MB RAM or higher; USB 2.0/1.1; Windows 98SE, ME, XP, or Windows 2000; CD-ROM drive
Mac systems 32 MB RAM or higher; true G3 processor or higher; USB 2.0/1.1; Mac OS 8.6 classic, OS X or higher, CD-ROM drive

The included Hard Disk Drive with the HD 15OT is the Fujitsu MHT2080AT. The full specifications, according to Fujitsu, can be found in the following table:

Formatted storage capacity 80 GB
Form Factor 2.5-inch x 9.5mm 
Bytes per sector 512 bytes
Seek time (track to track) 1.5 typ. milliseconds
Seek time (average) 12 typ. milliseconds (read/write)
Seek time (full track) 22 typ. milliseconds (read/write)
Average latency time 7.14 milliseconds
Rotational speed 4,200 RPM
Data transfer rate (DMA mode 2) 16.6 MB per second
Data transfer rate (PIO mode 4) 16.6 MB per second
Data transfer rate (UDMA mode 2) 33.3 MB per second
Data transfer rate (UDMA mode 4) 66.6 MB per second
Data transfer rate (UltraATA) 100 MB per second
Recording code 32/34 MEEPRML 
Interface ATA - 6 
Head positioning method Rotary VCM Embedded Servo 
Spindle start time 3.5 seconds typical
Spindle stop time 5 seconds typical
Data buffer size 8192 KB
Power requirement Voltage 5V ± 0.5%
Ripple 100 mV P-P
Power requirement Spin up 0.90A maximum
Power requirement Read/write 2.1 W (typical)
Power requirement Idle (ready) 0.65 W (typical)
Power requirement Sleep 0.1 W (typical)
Height 9.5 millimetres
Width 70 millimetres
Depth 100 millimetres
Weight 0.099 kg
Ambient temperature (operating) 5 to 55 degrees C
Ambient temperature (non-operating) -40 to 65 degrees C
Gradient 20 degrees C per hour
Relative humidity (operating) 8 to 90 % RH (non-condensing)
Relative humidity (non-operating) 5 to 95 % RH (non-condensing)
Maximum wet bulb 29 (Op.)/ 40 (Non Op.) degrees C (non-condensing)
Vibration (operating) 9.8m/s^2 (1.0G) (5 to 500Hz) 
Vibration (non-operating) 49m/s^2 (5.0G) (5 to 500Hz) 
Shock (operating) 2,205m/s^2 (225G) 2ms 
Shock (non-operating) 8,820m/s^2 (900G) 1ms / 1,176m/s^2 (120G) 11ms 
Altitude (operating) -300 to 3,000 metres
Altitude (non-operating) -300 to 12,000 metres
Acoustic noise (at 1 metre idle) 24 dBA typical
Acoustic noise (at 1 metre idle) 2.3 bels
MTBF (Mean Time Between Failures) More than 300,000 power on hours
MTTR (Mean Time To Repair) 30 minutes or less
Component life (years)
Design life used to calculate MTBF. NOT Warranty
3 years
Component life (hours) 20,000 power on hours
Unrecoverable errors 1 per 10^13 bits read
Seek errors 1 per 10^6 seeks
Start/stop cycles 300,000 cycles

- HD-15 PUK A

The HD-15 PUK A is similar to the HD 15OT but there is no "One Touch Button" function and off course no button on the device. Once again, the device is available with one of 40, 60, 80 or 100 GB capacity hard disk.

 Specifications for HD-15 PUK A
Data Transfer Rate up to 480 MB/sec.
Spindle Speed 4200 rpm
Dimensions 75 x 15 x 125 mm
Weight 180g
Power Bus powered
MTBF 100.000 POH
Interface USB 2.0 (Adapter Card not included)
Accessories Software driver CD-ROM, USB 2.0 Interface cable, Installation Guide

The included Hard Disk Drive with the HD-15 PUK A is the Fujitsu MHT2060AT.

Formatted storage capacity 80 GB
Form Factor 2.5-inch x 9.5mm 
Bytes per sector 512 bytes
Seek time (track to track) 1.5 typ. milliseconds
Seek time (average) 12 typ. milliseconds (read/write)
Seek time (full track) 22 typ. milliseconds (read/write)
Average latency time 7.14 milliseconds
Rotational speed 4,200 RPM
Data transfer rate (DMA mode 2) 16.6 MB per second
Data transfer rate (PIO mode 4) 16.6 MB per second
Data transfer rate (UDMA mode 2) 33.3 MB per second
Data transfer rate (UDMA mode 4) 66.6 MB per second
Data transfer rate (UltraATA) 100 MB per second
Recording code 32/34 MEEPRML 
Interface ATA - 6 
Head positioning method Rotary VCM Embedded Servo 
Spindle start time 3.5 seconds typical
Spindle stop time 5 seconds typical
Data buffer size 2048 KB
Power requirement Voltage 5V ± 0.5%
Ripple 100 mV P-P
Power requirement Spin up 0.90A maximum
Power requirement Read/write 2.1 W (typical)
Power requirement Idle (ready) 0.65 W (typical)
Power requirement Sleep 0.1 W (typical)
Height 9.5 millimetres
Width 70 millimetres
Depth 100 millimetres
Weight 0.099 kg
Ambient temperature (operating) 5 to 55 degrees C
Ambient temperature (non-operating) -40 to 65 degrees C
Gradient 20 degrees C per hour
Relative humidity (operating) 8 to 90 % RH (non-condensing)
Relative humidity (non-operating) 5 to 95 % RH (non-condensing)
Maximum wet bulb 29 (Op.)/ 40 (Non Op.) degrees C (non-condensing)
Vibration (operating) 9.8m/s^2 (1.0G) (5 to 500Hz) 
Vibration (non-operating) 49m/s^2 (5.0G) (5 to 500Hz) 
Shock (operating) 2,205m/s^2 (225G) 2ms 
Shock (non-operating) 8,820m/s^2 (900G) 1ms / 1,176m/s^2 (120G) 11ms 
Altitude (operating) -300 to 3,000 metres
Altitude (non-operating) -300 to 12,000 metres
Acoustic noise (at 1 metre idle) 24 dBA typical
Acoustic noise (at 1 metre idle) 2.3 bels
MTBF (Mean Time Between Failures) More than 300,000 power on hours
MTTR (Mean Time To Repair) 30 minutes or less
Component life (years)
Design life used to calculate MTBF. NOT Warranty
3 years
Component life (hours) 20,000 power on hours
Unrecoverable errors 1 per 10^13 bits read
Seek errors 1 per 10^6 seeks
Start/stop cycles 300,000 cycles

On the following pages we will compare the performance of both devices using several benchmark utilities.




Get RSS feed Easy Print E-Mail this Message


 
Home | News | All News | Reviews | Articles | Guides | Download | Expert Area | Forum | Site Info
Site best viewed at 1024x768+ - CDRINFO.COM 1998-2014 - All rights reserved -
Privacy policy - Contact Us .