: Supports standard 32/64-bit PCI and 66/133 MHz PCI-X slots. It is backward compatible with standard PCI slots, though performance may be limited by the bus.
Finding a dedicated Windows 7 installer for this specific 3Com model is difficult because 3Com was acquired by HP and later phased out. However, because the hardware is essentially a Broadcom chip, several workarounds exist: : The 3Com 3C996B T Driver Windows 7
: If an automatic installer fails, you can often "Force" the driver by going to Device Manager , selecting "Update Driver," and manually choosing a "Broadcom NetXtreme Gigabit" driver from the built-in Windows list. : Supports standard 32/64-bit PCI and 66/133 MHz PCI-X slots
3Com 3C996B-T Go to product viewer dialog for this item. is a high-performance originally designed for PCI-X slots in server environments. While it is a legacy device, it can be made to work on Windows 7 through specific driver paths, as it utilizes the widely supported Broadcom BCM5701 chipset. Driver Compatibility for Windows 7 However, because the hardware is essentially a Broadcom
: While supported by the hardware, stability for Jumbo Frames on modern operating systems like Windows 7 can be hit-or-miss depending on the specific driver version used.