Here's a quick run down of the notable electrical components contained in this cartridge:
FPGA - Altera Cyclone IV (EP4CE10F17C8N)
2x SDRAM - Alliance Memory 1Gb DDR2-800 (AS4C128M8D2-25BCN)
USB Interface - FTDI Hi-Speed USB to Multipurpose UART/FIFO (FT232HQ)
ST 8Mbit Serial Flash memory (25P80VP)
Microchip Technology 8-bit MCU (PIC16F1613-I/ST)
Ai-Thinker Serial WIFI MCU module (ESP8266MOD)
What's most surprising is the inclusion of a Wi-Fi Module! When inquired as to it's usage, the tentative future feature is - "to [sic]be able to post doge pics on twitter from my N64".
A "fuller" review to come soon. So far everything I've tried with the ED64 v3 also works with the 64drive HW2. The UX is a bit nicer on the 64drive than the ED64! Stay tuned!