We first caught sight D-Link's new 802.11n (or "Xteme N" as they like to call it) ExpressCard when it passed through the FCC
in December, but the company's now finally letting the rest of us get our hands on it, along with a similarly "Xtreme" PCI Express card. As we knew before, the DWA-643 ExpressCard boasts compatibily with 802.11b/g networks in addition to the speedier 802.11n, along with support for all the usual security measures, but no support for Macs. The PCI Express model (DWA-556) will give you those same specs with the added benefit of three external antennas, although that of course comes at the expense of being tied to your desk. Both are available now, coming in at $119.99 for the ExrpressCard model and $149.99 and PCI Express one.
[Via I4U News