Quick view Extreme Networks BlackDiamond 8900-10G8X-xl - expansion module - 8 ports (41631) 31787 Price: $22,049.99 Extreme Networks BlackDiamond 8900-series modules upgrade the BlackDiamond 8800 platform with a 3.8 terabit switching fabric. Featuring the foundation of an advanced modular network operating system, ExtremeXOS(R), the BlackDiamond 8800 series switches... Compare Add to Cart