KX-TDE100 systems are best suited for small to medium size business applications or upscale residential applications in the 5,000-7,000 square feet range using some IP features immediately. The KX-TDE100 is an advanced version of the KX-TDA100 using UCSD (Universal Card Slot Design) technology.
UCSD allows for any available card to be inserted into any available slot in any order. The KX-TDE100 has a total of six (6) Universal Card Slots. With UCSD technology, you can even remove the cards from a KX-TDE100 and insert them into a larger KX-TDE200 or KX-TDE600 with few exceptions. This makes the possibility of outgrowing this system quite remote.