Top and 2 rear located USB ports. Up to 4 USB devices can be connected simultaneously. Linkable to any other HDTT-5000 as a master or slave unit. Firmware upgradeable. Cortex HDTT-5000 Features: Intelligent Music Database Management The HDTT-5000's database management system allows the user to search through a massive library of music within seconds. Due to Apple limitations, the iPod® iTouch, iPhone & Mac formatted Classics are not compatible with Cortex products. PC-Based Database Creation Create database files at a gig via the HDTT unit or the PC application (downloadable from the Cortex website) on a home computer with lightning fast speed. Waveform Display Mode Via the Cortex database software, available FREE from the Cortex website, HDC-1000 users will be able to create a waveform of each song on their USB storage device which can then be optionally selected to be displayed on the HDTT-5000's LCD screen. Keyboard Support Quickly find that hot new track in a massive library of music with just a few taps of a USB-compatible keyboard. File Explorer Mode Perfect for DJs that have their own organizational system already in place. Browse through files and directories exactly as they exist on the storage device. Search Options Users can search the same way that they would using an iPod ® or similar portable music player through a number of browsing options, including Search by Artist, Song Title, Album, and Genre. String Search Easily search by a certain word or phrase to find tracks, even if you're unsure of the name. When the user inputs a keyword, it will search all Artists, Titles, Albums, and Genres, and show how many of each that it found. CD/DVD Audio and Data Playback No need to abandon your CD collection, the HDTT-5000 can play user-created CD-Rs, DVD-Rs and audio CDs with any compatible USB CD-ROM or DVD-ROM drive. Variable Pitch Slider (+/- 4, 8, 16, 24%) and Ultra-precise Pitch Control Precisely adjust the tempo of your mixes with a wide range of pitch options and ultra precise pitch in increments of 0.05% (in 4 and 8 pitch mode). Performance Protection Every Cortex HDTT unit features exclusive protection from accidental shutdown while playing. Simply press and hold the power button for more than 2 seconds to turn the unit off. Firmware Upgradeable Easily download new internal software from the Cortex website at www.cortex-pro.com. VBR & CBR File Support The HDTT-5000 can play all your MP3's; CBR or VBR at any bitrate up to 320kbps. Multi-language Support The HDTT-5000 supports multiple languages including English, French, and Spanish. Ultra-fast Instant Start From Cue to Start, get into the mix with no delay. Enhanced Features Efficient Sampli  (less)