Processor: Z80A rated at 3.5 Mhz.
BIOS: By Amstrad, 32K
RAM: 128 K
Mass Storage: A recently developed system, called "tape".
Video Card: 256*192 pixels at 50Hz (interlaced), 16 colors. RGB, Composite Video and RF out connectors.
Sound Card: Yamaha FM chip.
Two joysticks ports, 1 RS232 port and 1 parallel port.

Yes, it's a Sinclair ZX Spectrum +2A. It's fully operational and it replaces my old ZX Spectrum +. With this I currently have three non-functional Spectrums and one operational (if you're curious... 2 ZX Spectrum+ with burnt keyboard, 1 ZX Spectrum +2A with ULA failure).