The Nintendo 64 System includes the following:

• Nintendo 64
• AC Adapter
• AV Cable
• Controller

What is a Transfer Pak?

The Expansion Pak (NUS-007) consists of 4 MB (megabytes) of random access memory (RAM)—which is RDRAM, the same type of memory used inside the console itself—increasing the Nintendo 64 console’s RAM from 4 MB to 8 MB of contiguous main memory.

It does improve the graphics and adds features on games that are made for it. However, it does not improve older games made before the release of the Pak.