PCDVD數位科技討論區 - [鳴戶] WD 監視器專用硬碟2.0TB「WD20EVDS」32MB

前言：

2.0TB等級的硬碟小弟入手4個多月(詳見[鳴戶]達陣『2TB門檻』...WD「WD20EADS」32MB...)，致力於省電效能提升，而新版本監視器專用硬碟就樣給他蹦出來，只是早買早享受早買早換新XD，WD的用心研發科技的進步著實值得肯定。

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初章：

WD AV-GP 官網

引用:

WD AV-GP 硬碟產品線的特色有：
　　長時間運作可靠性 - 比照如個人/數位錄放影機與影像監視錄影系統等經常性串流數位影音運作時的高溫環境所設計。
靜音 - 將噪音最小化至 15 分貝(1 sone ) - 差不多低於人耳所能聽到的標準。

　　減輕電力損耗 - WD結合其 IntelliSeek、IntelliPark 及 IntelliPower 等專利技術優勢，所研發的WD AV-GP硬碟比一般桌上型硬碟省下高達 40％的耗電量。

　　IntelliPark - 硬碟閒置時可自動將磁頭脫離表面，減少空氣阻力，降低耗電量。IntelliPark 可增強硬碟在閒置時的防振特性，尤其在長程運送與處理時更具耐用性。

　　相容性 - 與數位機上盒、DVD 錄放影機與主流監視系統等眾多影音產品完成相容性測試。

　　SilkStream - 最佳化處理技術，可同時順暢不間斷地播放多達 12 個高解析串流影音檔。SilkStream 與 ATA 串流指令集相容，因此 CE 用戶可使用標準串流管理與錯誤回復功能選項。

　　Preemptive Wear Leveling (PWL) - 應用於影音串流設備，讓硬碟讀寫臂經常掃過磁碟，以減少表面不平均的磨損。

性能規格

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Performance Specifications
Rotational Speed IntelliPower *
Buffer Size 32 MB

Transfer Rates
Buffer To Host (Serial ATA) 3 Gb/s (Max)

Physical Specifications
Formatted Capacity 2,000,408 MB
Capacity 2 TB
Interface SATA 3 Gb/s
User Sectors Per Drive 3,907,029,168

Physical Dimensions
English
Height 1.028 Inches
Length 5.787 Inches
Width 4.00 Inches
Weight 1.61 Pounds

Metric
Height 26.1 mm
Length 147 mm
Width 101.6 mm
Weight 0.73 kg

Environmental Specifications
Shock
Operating Shock (Read) 65G, 2 ms
Non-operating Shock 250G, 2 ms

Acoustics
Idle Mode 25 dBA (average)
Seek Mode 3 26 dBA (average)

Temperature (English)
Operating 32° F to 158° F
Non-operating -40° F to 158° F

Temperature (Metric)
Operating -0° C to 70° C
Non-operating -40° C to 70° C

Humidity
Operating 5-95% RH non-condensing
Non-operating 5-95% RH non-condensing

Vibration
Operating
Linear 20-300 Hz, 0.75 G (0 to peak)
Random 0.004 g²/Hz (10 to 300 Hz)

Electrical Specifications
Current Requirements
12 VDC
Read/Write 282 mA
Idle 260 mA
Standby 3 mA
Sleep 3 mA

5 VDC
Read/Write 505 mA
Idle 356 mA
Standby 125 mA
Sleep 125 mA

Power Dissipation
Read/Write 5.91 Watts
Idle 4.9 Watts
Standby 0.66 Watts
Sleep 0.66 Watts

As used for storage capacity, one megabyte (MB) = one million bytes, one gigabyte (GB) = one billion bytes, and one terabyte (TB) = one trillion bytes. Total accessible capacity varies depending on operating environment. As used for buffer or cache, one megabyte (MB) = 1,048,576 bytes. As used for transfer rate or interface, megabyte per second (MB/s) = one million bytes per second, megabit per second (Mb/s) = one million bits per second, and gigabit per second (Gb/s) = one billion bits per second.

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