G-Rex 1200 is the fastest PCI solution for the BlizzardPPC equipped A1200.
The G-REX 1200 PCI is a bridge board designed for the Amiga 1200 in Winner/Power/Elbox-, Infinitiv- or V-Tower. Up to 5 PCI cards can be used. It also features AT and ATX PSU connectors.
Features

5x PCI 2.1-compliant slots

PCI 25-33 MHz bus clock (depending on the PPC bus clock of the Blizzard 603e(+))

32 bit bus mastering

32 bit DMA from/to Blizzard 603e(+)

Data transfer rates of upto 25 MB/s between Amiga and PCI

1.76 GB address space without bank switching

PC AT and ATX power supply connectors

Supported by AmigaOS via
OpenPCI

Supported by MorphOS

Requires a Blizzard 603e(+)

Version 1.1