SIIG Jj-000082-S1 Pcie To Expresscard Bay Rohs-Compliant 40 Key Features and Benefits &gt; Convenient drive-bay design adds one ExpressCard/54 slot to desktop computers allowing systems to use the latest ExpressCard adapter cards &gt; Installs in any available 3.5?or 5.25?device bay (5.25?mounting rack included) &gt; Works with ExpressCard devices including Wireless Wide Area Network modems RoHS-compliant