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Being a relatively large notebook, you would expect the E5530 to be brimming with ports. However, the liberal spacing of these ports around the chassis edge makes the complement look a little more meagre than it actually is. Somewhat unusually, the power connection is on the left rear corner, and the Ethernet port on the right rear corner, with a USB 2.0 port alongside at the back of the machine. On the left can be found full-sized HDMI, plus a USB 3.0/eSATA combo port, a second USB 3.0 port, a SD card reader, and an ExpressCard/54 slot for expansion.
A clever soul at Dell with battery like Dell Studio 1737 battery , Dell 312-0712 battery , Dell Inspiron 1410 battery , Dell Vostro A860 battery , Dell Vostro 1088 battery , Dell Studio 1436 battery , Dell WT873 battery , Dell Studio 1435 battery , Dell Inspiron 1545 battery , Dell 451-10690 battery , Dell Inspiron 910 battery , Dell Vostro A90N battery has turned the plastic spacer filling the ExpressCard slot into a small ruler, wire diameter measurement tool, and letter opener. This is maybe not an essential feature, given that the ruler is only 2in long, but it shows an amusing level of design imagination. It's also worth noting that the ExpressCard slot can be specified as a SmartCard reader instead if required.