Specifications

DELL™ OPTIPLEX™ 990 TECHNICAL GUIDEBOOK —VERSION 1.5
15
DRIVES AND REMOVABLE STORAGE
1
For hard drives, GB means 1 billion bytes; actual capacity varies with preloaded material and operating environment and will be less.
2
Discs burned with this drive may not be compatible with some existing drives and players; using DVD+R media provides maximum compatibility.
3
DVD-ROM drives may have write-capable hardware that has been disabled via firmware modifications.
SYSTEM EXPANSION SLOTS
NOTE: See Detailed Engineering Specifications for supported voltage, maximum wattage and card dimensions.
NOTE: Add in card location and priority: PCI: 1394; PCIe x16: GFX, USB 3.0, Serial, Parallel/Serial, NIC, Wireless; PCIe x4: GFX,
USB 3.0, Serial, Parallel/Serial, NIC, Wireless; PCIe x1: USB 3.0, Serial, Parallel/Serial, NIC, Wireless
NOTE: Dell 19 in 1 Media Card Reader (MCR) is supported via a F5 to F3 bay converter on the MT and DT and may require a slim
line optical drive depending on selectable configuration. MCR is not available on the SFF and USFF.
MT DT SFF USFF
PCI Slot 1 1 0 0
PCIe x16 Slot 1 1 1 0
PCIe x16 (wired x4) Slot 1 1 1 0
PCIe x1 Slot 1 1 0 0
Serial ATA (SATA) connectors 4 3 3 2
Half mini-PCIe connector 0 0 0 1
MT DT SFF USFF
RAID 0 Performance: (includes two matching capacity/speed hard drives)
1TB
1
SATA 7200 RPM HDD (3.5”) X
500GB
1
SATA 7200 RPM HDD (3.5”) X
320GB
1
SATA 7200 RPM HDD (3.5”) X
250GB
1
SATA 7200 RPM HDD (3.5”) X
500GB
1
SATA 7200 RPM Hybrid HDD (2.5”) X X X
500GB
1
SATA 7200 RPM HDD (2.5”) X X X
250GB
1
SATA 7200 RPM HDD (2.5”) X X X
Optical Drive: (SFF/USFF require slim-line optical drive)
Blu-ray Writer SATA 1.5Gbit/s X X X X
DVD+/-RW
2
SATA 1.5Gbit/s X X X X
DVD-ROM
3
SATA 1.5Gbit/s X X X X
Media Card Reader: (requires slim line optical)
Dell 19 in 1 Media Card Reader X X