TI 99/4a Peripherals

The WHT AT Keyboard Interface

And ROM Upgrade

$59.95 U.S. + $6 s&h
NO LONGER AVAILABLE
"Experimenters" Versions (non-functional) available for $30.00 + S&H. Email for more information.

The WHT AT Keyboard Interface & ROM Upgrade provides your TI 99/4a with a true AT Keyboard Interface to connect your favorite 101+ AT Keyboard to the console. This unique piece of hardware installs inside your computer over the CPU and allows the use of both an AT keyboard and the internal console keyboard simultaneously!

Besides providing the AT interface, this device also upgrades your systems ROM's (where the TI Operating System resides) to correct bugs that affect the use of 80 column cards. Another unique feature is the ability to broaden the CRU scanning range allowing peripheral cards such as the WHT SCSI Card to reside at addresses >600 and up.

Also included on the AT Keyboard Interface is an optional 64K of 0-wait state 16 bit battery backed RAM for programs and data storage*.

No need to worry about the alpha lock as the AT Keyboard Interface does not interfere with gaming in any way! Play head to head with two people on their own keyboard. Put your console on a shelf and never worry about bumping the P-Box connection again!

Installation is not included with the AT Interface and is available for those who do not wish to do it themselves for an additional $30. Installation is fairly simple for those experienced with soldering. All installations are made at your own risk, WHT will not be responsible for damage to your console or AT Interface.


Head to head with the Rave XT Interface

 

Feature

AT Interface

Rave XT

Industry Standard Interface

YES

OBSOLETE

Easy to find inexpensive keyboards

YES

NO

Supports 84, 101 and newer 104 keyboards

YES

NO

Allows use of console keyboard simultaneously

YES

NO

16 Character type ahead buffer

YES

NO

Extends CRU Address range from >600

YES

NO

Supports Auto Switching Keyboards

YES

NO

User Installable 64K 0-Wait State Optional RAM

YES*

NO

64K Of System ROM

YES

NO

Order your AT Keyboard and ROM upgrade today and end your typing woes!


Current AT Keyboard Specials:

 

Keyboard Model

# of Keys

Warrantee

Price

Mitsumi Win '95

104

1 Year

$14.95

Keytronics Win '95

104

1 Year

$25.95

Microsoft Natural

104

1 Year

$63.95


Copyright 1996 Western Horizon Technologies

Please direct problems or questions to don@whtech.com, or call (408) 259-4411.