Like the 330, the 330g (Figure 1) supports AP and client modes, which are selected via a switch on the bottom of the enclosure.
Figure 1: The WL330g with power supply
Other than a more stylish package, the 330g's physical attributes are essentially the same as the 330's, so if you need details, check out that review.
The 330g also comes with a little carry case that holds the 330g, its power supply and other assorted odds and ends, including a power cable that allows you to power it from a standard USB port.
Figures 2 and 3 show the construction details of the 330g.
Figure 2: The innards
It uses Marvell's Libertas 802.11g Access Point Solution made up of the ARM9-based 88W8510 processor and CMOS 88W8010 transceiver. It also has the unique diversity antennas, which are made from flat metal and are nestled into slots in the top cover's sides. You can see them at the top left and bottom right of the cover in Figure 2 while Figure 3 shows a closer view of the board.
Figure 3: Closer view of the board