: 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.
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
: Databases like The Retro Web and DriverGuide host original BIOS and driver files for older server builds. 3Com 3C996B-T - The Retro Web : While supported by the hardware, stability for
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 3Com 3C996B-T - The Retro Web 3Com 3C996B-T
: Offers true 10/100/1000 Mbps speeds. In historical testing, it was noted for having very low CPU overhead (around 12%) even near maximum gigabit speeds. Known Issues & Tips
: Drivers designed for Windows Vista are generally compatible with Windows 7. Many repositories offer Broadcom-signed drivers (version 7.80.0.0 or higher) that support the hardware ID VEN_14E4&DEV_1645 .