This is Shipped free using USPS First Class.
This has BOTH the Dead Test and the Diagnostic test available, just turn the cartridge based on which one you want to load!
This also comes with a 3D Printed case in white.
The Diagnostic test is the Diag 586220++ SX-64 fixed
This modified version has a fixed SX-64 detection and a fixed IRQ test when it's
running on SX-64 hardware (since the SX-64 does not have a cassette port)
Note for the SX-64 only: To get a valid test result, the original SX-64 Kernal has
to be enabled. Kernal-Replacements like JiffyDOS must be deactivated.
The Dead Test is also enhanced - it will test the SID filters now as well !
For abundance of clarity: if you want to take full advantage of the DIAGNOSTIC cartridge, you will also want to buy or build the diagnostic harness.
Check out the manual and video for more info on that:
https://youtu.be/5fv_2QJsDQc?t=953
https://portcommodore.com/rcarlsen/cbm/misc/diagcart/64-128%20cart/Technical%20manual%20clearscan.pdfdf