特色：

原廠 IBM lenovo X200 系列 Ultrabase FRU：42X4963 九成新!!

適用機型：X200, X200s, X200 Tablet, X201, X201i, X201s, X201 Tablet詳細規格：

含光碟機、可燒DVD / CD ! (無鑰匙不影響功能)

Passthrough ports:
Gigabit Ethernet (RJ45)
VGA (支援解析度最高到 2048x1536 by Lenovo官方資料)
Microphone
Headphone
AC
Additional ports:
4 USB ports (1個在右邊, 3個在後方)
DisplayPort (支援解析度最高到 2560x1600 by Lenovo官方資料, 支援FULL HD)
Battery charging connector (可以接ULTRABASE電池)
Serial Ultrabay Slim with one of the following:
None (empty)
Serial Ultrabay Slim DVD-ROM Drive
Serial Ultrabay Slim CD-RW/DVD combo Drive
Serial Ultrabay Slim DVD Burner
Serial Ultrabay Slim Blu-ray Burner
Kensington security hole
key lock to lock laptop to a docking station
Pros & Cons
Positives:
eases up portability of laptop
provides digital video output
provides option for optical drive
allows effective use of second battery
allows to connect 2 external monitors (one via DisplayPort, second via VGA)(雙螢幕輸出)
Compatibility: X200, X200s, X200 Tablet, X201, X201i, X201s, X201 Tablet