Tolong jelaskan mengenai |- dari Dell Studio

| Optical Drive || 8× Slot-load dual-layer DVD+/-RW drive || 16 DVD+/-RW, bisa disesuaikan dengan Blu-ray Disc burner dan DVD+/-RW drive || 16× tray-load dual-layer DVD+/-RW, 2× tray-load Blu-ray disc combo drive, atau Blu-ray disc burner (konfigurasi single dan dual-drive) || 16× slot-load dual-layer DVD+/-RW atau 2× slot-load Blue-ray disc combo drive|-

| Webcam ||  ||  ||  || 1.3 MPixel webcam|-

| Wi-Fi || Dell Wireless 1505 802.11n mini-card ||  || Dell Wireless 1505 802.11n dengan antena external || internal 802.11b/g wireless networking atau internal 802.11n wireless networking|-

| Lainnya || external 56K Fax modem || 7.1 channel audio terintegrasi, bisa disesuaikan dengan Sound Blaster X-Fi Xtreme Gamer audio card || 8 port USB, 1 port eSATA, 1 port FireWire, 1 port Gbit Ethernet, 1 audio line output, 1 back L/R konektor surround sound, 1 konektor subwoofer, 1 konektor S/PDIF, 1 19-in-1 pembaca kartu memori, 1 headphone jack, dan 1 microphone jack ||6 port USB, 1 port FireWire, 1 port Fast Ethernet, 1 audio line output, 1 7-in-1 pembaca kartu memori, 1 headphone jack, dan 1 microphone jack|-