I sold 4 of these a few weeks ago and this is the last remaining one. I have checked this unit and it definitly has a Zilog Z8400APS CPU. It is fitted into a carrying case which can be closed for portability. I cannot test this item or give any assurances of it's working ability.This unit is also untested but the previous buyers indicated that they got them to work. One buyer also supplied some online information of these kits from a different manufacturer and I will gladly provide these links to the winner. Combined postage is possible on most of my listings. Email me for details of what I can combine or not. Final postage price for combined items depends on how easy it is for me to get a box to fit everything. Sometimes boxes cost me £3 to £4 to fit everything in and if this is the case I will add that charge to your order but you will still end up with a significant discount. For example, if you bought 4 items from me each with individual postage costs of £10 then the total postage for 4 individual boxes will be £40. But if I were to combine them in one box it might be £20 but if I don't already have a box to do this, I might have to purchase a box for £4 maximum and that £4 I will add to the cost of postage so you will be invoiced for £24 - which is still £16 cheaper than if you got 4 individual parcels. Some buyers think this is unfair, but I am not obliged to combine postage so please think before you rant and rave that my postage costs are high when you are already getting a huge discount on the postage. I am a private seller so I can only pass on the charges. This is why I am asking anyone who wants to bid on more than 1 item contact me if you want your postage combined. I will try my best to offer the cheapes postage possible. Please see my other items listed. Email me for quick sale if paying cash on collection. UK only sale. Price of postage is for UK mainland only. Cash on collection possible.