HP Mobile DVDRW (R DL) / DVD-RAM Drive - External (701498-B21) Interface: USB Optical storage: dvdrw (R DL) / DVD-RAM Designed for: proliant DL180 Gen9, DL380 Gen9 high performance, DL560 Gen9, DL560 Gen9 base, DL560 Gen9 entry, DL560 Gen9 performance