巴西采购需求：坚固的笔记本电脑、耐用的笔记本电脑、坚固的笔记本电脑、坚固的笔记本电脑、可靠的笔记本电脑、重型笔记本电脑

I'm in the market for an industrial PC that is compatible with U4 and meets specific requirements. Ideally, it should feature at least six PCI slots—divided into three for output and three for input—to support a comprehensive 64-channel I/O configuration. Additionally, the system must be capable of running on Windows XP, as this is essential for our current operations. I'm looking to procure two units and would appreciate any recommendations or offerings you might have that fit these criteria. Please provide details on availability, pricing, and any additional specifications that may be relevant. I'm located in Brazil and eager to finalize this as soon as possible. Thank you!