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Apple iPod 4th Gen (ClickWheel) 20 GB, 40 GB Specs

Identifiers: iPod (ClickWheel) - M9282LL/A* - A1059 - 1995

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Apple iPod 4GThe Apple iPod (Fourth Generation) features a 20 GB or 40 GB 4200 RPM ATA-66 hard drive capable of supporting "up to" 5,000 or 10,000 songs encoded in "128-Kbps AAC format" and 25 minutes of skip protection. The iPod (4G) is similar to the third generation models, but features a slightly thinner enclosure and an improved display, borrows the revolutionary "ClickWheel" from the previously introduced iPod mini and dramatically improves battery life for "up to" 12 hours of continuous music playback.

In addition to improving battery life, revised software places the "Shuffle Songs" feature on the main screen, and includes the voice record feature, games, and alarm clock from the third generation models.

The 40 GB configuration shipped with a "dock" for quick-and-easy connection to a computer, and could be purchased separately, at additional cost, for the 20 GB configuration.

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  • Tech Specs
  • Global Original Prices
  • Popular Q&As

Click on a category for related details. The most commonly needed info is "open" by default, but all info is important.

July 19, 2004 June 28, 2005*
Details: The "Introduction Date" refers to the date a model was introduced via press release. The "Discontinued Date" refers to the date a model either was replaced by a subsequent system or production otherwise ended.

*The 40 GB configuration was discontinued February 23, 2005.

Also see: All iPhone models introduced in 2004.
80 MHz (x2) PP5020
Details: The iPod 4G uses a PortalPlayer PP5020 "system on a chip" with dual embedded variable speed 80 MHz ARM 7TDMI processors.
32 MB 20 GB, 40 GB
Details: 32 MB of SDRAM provides skip protection.
5000, 10,000 None
Details: Apple reports that the 20 GB iPod 4G configuration can hold approximately 5000 songs in "128-Kbps AAC format", and the 40 GB configuration can hold 10,000 songs.
Sync & Charge Sync & Charge
Details: The iPod 4G models are capable of charging and syncing by USB and Firewire via the dock connector.
Firewire & USB Dock, Headphone*
Details: Apple reports that this model provides "Firewire 400 and USB 2.0 through dock connector."

*Ports include the "dock connector, remote connector, and stereo minijack."
Handheld iPod 4th Gen
Details: N/A
White "ClickWheel"
Details: Available in a two-tone housing with an "iBook white" front and a chromed stainless steel back.
2" Grayscale 160x128
Details: The iPod 4G models have a "2-inch (diagonal) grayscale LCD with blue-white LED backlight". 0.24-mm dot pitch.
Lithium Ion 12 Hours
Details: Apple reports that the iPod 4G provides "up to" 12 hours of music playback.

In the US (and many other countries), site sponsor Other World Computing sells replacement batteries this iPod.

In Australia, site sponsor Macfixit sells replacement batteries -- as well as glass covers, displays, and other parts and repair tools -- for this iPod.
Details: No support for photos or video.
"About 4 Hours" M9282LL/A*
Details: Apple reports that the iPod (4G) models charge completely in "about 4 hours" and also will "fast charge" in 2 hours to 80% capacity.

*The M9282LL/A order number is for the 20 GB configuration of the iPod (4G), the 40 GB configuration is (M9268LL/A).
iPod (ClickWheel) A1059 (EMC 1995)
Details: Please note that these identifiers refer to more than one model.

Also see: All iPods with the A1059 Model Number and the 1995 EMC Number.
4.1 x 2.4 x 0.57* 5.6 oz.*
Details: In inches - height by width by depth (20 GB configuration - M9282LL/A). The 40 GB configuration is slightly thicker (0.69 inches) and heavier (6.2 oz).
MacOS X 10.1.5 Windows 2000/XP
Details: Apple reports that this iPod is compatible with a "Macintosh computer with Firewire port, MacOS X 10.1.5 or later (MacOS X 10.3 or later recommended); USB 2.0 requires MacOS X 10.3.4."

It is compatible with a "PC with a Firewire or USB 2.0 port or Firewire or USB 2.0 card [running] WIndows 2000 with Service Pack 4 or Windows XP Home or Professional".
Apple reports that the iPod 4G supports "AAC (16 to 320 Kbps), MP3 (32 to 320 Kbps), MP3 VBR, Audible, AIFF, Apple Lossless, and WAV."
Shipped with "earbud headphones, AC adapter, Firewire cable, [and a] USB 2.0 cable". The 40 GB configuration also shipped with a dock.

In the US (and many other countries), site sponsor Other World Computing sells accessories like cases, stands, keyboards, speakers and more for this iPod.

In Australia, site sponsor Macfixit sells cases, stands, chargers, docks and even parts for this iPod.
US$299, US$399 US$50-US$70
Details: The 20 GB configuration (M9282LL/A) originally sold for US$299, the 40 GB (M9268LL/A) configuration for US$399.

Please note that on average the estimated current retail pricing of used systems is updated twice a year (please refer to the date on the bottom of the page for the date last updated).

Photo Credit: Apple Computer.

Global original prices for the iPod 4th Gen (ClickWheel) in 34 different countries and territories follow; organized alphabetically by region. Please note that prices with an asterisk (*) are bound by carrier contractual obligations.

For global original prices for all iPod, iPhone, and iPad models in one particular country on a single page, please refer to's Global Original Prices section.

If you have additional original prices for this iPod, please share. Thank you.

Original Prices - North & South America

C$429, C$559 N/A
N/A US$299, US$399

Original Prices - Europe

€319, €429 N/A
N/A £219, £299

Original Prices - Asia

¥33,390, ¥44,940 N/A

Original Prices - Australia & New Zealand

N/A NZ$612, NZ$795

Ten of the most popular Q&As about the iPod line follow.

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