IBM System x3400 M3 22IBM UltraSlim Enhanced SATA DVD-ROM (part number 46M0901) supports the following media andspeeds for reading:CD-ROM 24XCD-DA (DAE) 20XCD-R 24XCD-RW 24XDVD-ROM (single layer) 8XDVD-ROM (dual layer) 8XDVD-R (4.7 GB) 6XDVD-R DL 4XDVD+R 6XDVD+R DL 4XDVD-RW (4.7 GB) 4XDVD+RW 4XDVD-RAM (4.7/9.4 GB) 4XIBM UltraSlim Enhanced SATA Multi-Burner (part number 46M0902) supports the same media andspeeds for reading as DVD-ROM (46M0901), in addition to the following media and speeds for writing:CD-R 24XCD-RW 4XHigh Speed CD-RW 10XUltra Speed CD-RW 16XUltra Speed Plus CD-RW 16XDVD-R 8XDVD-R DL 6XDVD+R 8XDVD+R DL 6XDVD-RW 6XDVD+RW 8XDVD-RAM 5XI/O expansion optionsThe server supports up to eight PCI Express slots (six slots are on the system planar and one or two slotsare on the extender card. The slot form factors are as follows.System planar:Slot 1: PCIe 2.0 x8, full height, half lengthSlot 2: PCIe 2.0 x16 (x8 wired), full height, full lengthSlot 3: PCIe 2.0 x8 (x4 wired), full height, full lengthSlot 4: PCIe 2.0 x8 (x4 wired), full height, full lengthSlot 5: PCIe 2.0 x8, full height, full lengthSlot 6: PCI 32-bit/33 MHz, full height, half lengthPCI Express extender card (comes with standard models):Slot 7: PCIe x8 (x4 wired), full height, half lengthPCI-X extender card (only available in CTO):Slot 7: PCI-X 64-bit/133 MHz, full height, half lengthSlot 8: PCI-X 64 bit/133 MHz, full height, half length