Make this my favourite Sizif 512K , SIZIF 512K , clone ZX Spectrum

Retro Computers >> Sinclair >> Sinclair ZX Spectrum >> Hardware >> Systems
Listing type:
Fixed price
Item Condition:
Seller location:
Lisboa, Lisboa, Portugal
Ending in:
This listing is closed (08/04/2023)
Fixed price:
Shipping Costs:
From only €15.00
Payment methods:

Item Number : 63536

Meet the seller

jose08 (14) User Offline

Contact the Seller
Add Seller To Favourites
See Other Items


SIZIF 512K Rev. E1, is one of the most popular ZX Spectrum clones.

The sale only includes fully assembled and tested board, does not include micro SD or any cables.
As a power supply you can use any power supply from a ZX Spectrum 48K or equivalent with the same specifications.

Worldwide shipping available.

Video output for this version has 3 options AV / EGA or RGB output (full details on project page).

Technical specifications:
-Available alternative PS2 port for keyboard
-PCB half the size of the original ZX Spectrum 48K box
-Available modes: Pentagon, Spectrum 128, Spectrum 48 and Spectrum +3e
-Based on CPLD Altera EPM1270
-Available Z80 speeds: 3.5MHz, 4.4MHz, 5.2MHz, 7MHz (turbo no standby)
and 14 MHz (turbo with standby states)
-RAM 512K
-AY-3-8910 with switchable ABC/ACB/mono stereo output
-Sega 6-button joystick input; Kempston/Sinclair Modes
- Integrated DivMMC and Z-Controller, 1 microSD socket
- PAL and RGB AV video output (Sega Mini-DIN/9 connector)
-Digital video output jack for EGA monitors, VGA scanners, etc.
-Mono covox (Pentagon standard)
-SounDrive (4-channel stereo covox)
-Wi-Fi (additional)
-Audio input via 3.5" jack and Bluetooth
-9-12V power supply with any polarity
-Reset and Magic buttons; connector for ON/OFF button
- PS/2 keyboard interface

project link:
video of one of my previous builds of the D1 version:

Fully assembled and tested board.

new to this version:
- Fuse on power input
- Protection diode on 5V power rail
- replaced TRS audio connectors by TRRS with video output
- improved compatibility with wireless sega gamepads - 3.3V power replaced by 5V
- ability to simultaneously install the power/reset keys together with the connectors
- jumper for wiring minidin-9 pin 4 with composite or sync output for compatibility with dirty scart cables

Picture gallery

  • Sizif 512K , SIZIF 512K , clone ZX Spectrum
  • Sizif 512K , SIZIF 512K , clone ZX Spectrum
  • Sizif 512K , SIZIF 512K , clone ZX Spectrum

Youtube Video

Questions and Answers

Shipping and Payment

Item Location:
Lisboa, Lisboa, Portugal
Shipping conditions:
Buyer pays shipping expenses
Shipment fee:
  • To Portugal :
  • First Class Post : €15.00
  • To EU :
  • Airmail Post : €15.00
  • To Americas (Non USA) :
  • Airmail Post : €20.00
  • To Rest of World :
  • Airmail Post : €25.00
  • To USA :
  • Airmail Post : €20.00
Shipment terms:
Not specified
Payment methods:

The seller accepts all responsibility for this listing

Page view: 785