6 Months Ago, CD Freaks.com says (in Lenovo ThinkPlus USB 2.0 CD-RW/DVD-ROM Combo II (Italy))  Netherlands
No external power adapter is required for read/write operations when the drive is connected to a single USB 2.0 port on ThinkPad notebooks. This slim and lightweight drive allows users to install or run software, listen to music or watch DVD movies. ...

And CD Freaks.com says (in Lenovo ThinkPad DVD-ROM Ultrabay Enhanced Drive (Serial ATA))  Netherlands
View DVD movies and install CD/DVD software with this optical drive option. Do you have a question about the Lenovo ThinkPad DVD-ROM Ultrabay Enhanced Drive (Serial ATA)? Ask our community members, we are sure they can help you. Ask a new question? ...

And CD Freaks.com says (in IBM MINI HARD DRIVE 40 GB THINKPAD 40GB)  Netherlands
Upgrade your ThinkPad X40 Series notebook (models with 20GB) with a larger primary system hard drive. The ThinkPad 40GB Mini Hard Disk offers outstanding storage capacity and performance to handle demanding operating systems and data-intensive ...

And CD Freaks.com says (in Lenovo USB 2.0 Super Multi-Burner Drive - Europe)  Netherlands
Reads and writes without an external power adapter when connected to two ThinkPad or Lenovo 3000 system USB 2.0 ports - this allows users to install or run software, listen to music, watch DVD movies or copy CDs or DVDs, drawing power via the USB ...