HP EliteBook 8440P - Memory modules; Adding or replacing a memory module in the expansion memory module slot

Specifications
Maintenance and Service Guide 6–5
Blu-ray R/RE DVD±RW SuperMulti Drive specifications
Applicable disc
Read CD-DA, CD+(E)G, CD-MIDI, CD-TEXT, CD-ROM, CD-ROM XA,
mixed-mode CD, CD-I, CD-I Bridge (Photo-CD, Video CD),
Multisession CD (Photo-CD, CD-Extra, Portfolio, CD-R, CD-RW),
CD-R, CD-RW, DVD-ROM (DVD-5, DVD-9, DVD-10, DVD-18),
DVD-R, DVD-RW, DVD+R, DVD+RW. DVD-RAM, BD-ROM,
BD-R, BD-RE
Write CD-R, CD-RW, DVD+R, DVD+R(9), DVD+RW, DVD-R,
DVD-R(9), DVD-RW, DVD-RAM, BD-R, BD-RE
Random Access time
BD < 230 ms
DVD < 180 ms
CD < 180 ms
Max media capacity
Read 50 GB
Write 50 GB
Cache buffer 2 MB
Data transfer rate
24X CD-ROM 3600 KB/sec
8X DVD-ROM 10,800 KB/sec
2X BD-ROM 9000 KB/sec
24X CD-R 3600 KB/sec
16X CD-RW 2400 KB/sec
8X DVD+R 10800 KB/sec
6X DVD+RW 8100 KB/sec
8X DVD-R 10800 KB/sec
6X DVD-RW 8100 KB/sec
4X DVD+R Dual Layer 5400 KB/sec
4X DVD-R Dual Layer 5400 KB/sec
5X DVD-RAM 6750 KB/sec
2X BD-R 9000 KB/sec
2X BD-RE 9000 KB/sec
2X BD-RAM 9 MB/sec