ZXMAK2 v2.7.1.0 Beta is released. ZXMAK2 is plugin based ZX Spectrum Virtual Machine. On the other side, this is flexible ZX Spectrum emulator. Project written in C#. Currently it works on Windows platform and using Managed DirectX.

Support the following ZX Spectrum clones:
- ZX Spectrum 48 (later model contended memory)
- ZX Spectrum 128 (later model contended memory)
- Pentagon 128
- SCORPION 256
- ATM 450
- PROFI 5xx
- QUORUM 256
- Leningrad 1
- Other (through custom configuration and plugins, for example LEC mod)

ZXMAK2 v2.7.1.0 Beta Changelog:
- show rzx state in debugger window
- fix RZX playback
- add Maximum Speed feature (menu VM->Maximum Speed)
- add profi memory with rom v1.0 (useful for PROFI ULA 3.XX)

Download: ZXMAK2 v2.7.1.0 Beta
Source: Here