16K RAM Packs
16K Ram Pack
The TS1000 computer has 2K of random access memory built into it. (The ZX81 has just 1K.) The Sinclair 16K RAM Pack will increase your computer's memory capacity to 16K so that you can load and run all of the most popular software titles. This 16K RAM can also be used to extend the TS1500's built-in 16K RAM to 32K.
$19.95 each    
You must calculate and add shipping charges to your order by going here.