Apple unveiled its new super thin iMacs last month, when it revealed the iPad Mini and fourth-generation iPad. Today, the company announced that the 21.5-inch will be available on Friday, November 30.

The 21.5-inch version will be available through the Apple Online Store, Apple retail stores, and through select Apple Authorized Resellers. The 27-inch version will be available for order through the Apple Online Store, and will begin shipping in December.

Apple considers the new iMac to be the most advanced desktop it has ever made. The company says in its announcement:

Redesigned from the inside out, the new iMac packs high performance technology into an aluminum and glass enclosure that measures just 5 mm thin at its edge and features a reengineered display that reduces reflection by 75 percent. The new iMac includes 8GB of 1600 MHz memory, a 1TB hard drive, third generation quad-core Intel Core i5 processors that can be upgraded to Core i7, and the latest NVIDIA GeForce graphics processors that deliver up to 60 percent faster performance. Fusion Drive is an innovative new storage option that gives customers the performance of flash and the capacity of a hard drive by combining 128GB of flash with a standard hard drive to create a single storage volume that intelligently manages files to optimize read and write performance.

The 21.5-inch is available with a 2.7 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.2 GHz and NVIDIA GeForce GT 640M for $1,299, and with a 2.9 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GT 650M for $1,499.

Its 27-inch counterpart comes with a 2.9 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GTX 660M for $1,799, and with a 3.2 GHz quad-core Intel Core i5 with Turbo Boost speeds up to 3.6 GHz and NVIDIA GeForce GTX 675MX for $1,999.