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UltraBay is originally IBM's name for the swappable drive bay in the ThinkPad range of laptop computers. When the ThinkPad product line was sold to Lenovo, the concept and the name stayed. It is also used in some of Lenovo's own IdeaPad Y Series laptops.

Introduced with the ThinkPad 750 series in 1995, this technology has gone through redesigns with almost every new generation of ThinkPad, which may lead to confusion. The following table gives an overview of the different UltraBay types, in which models they occurred and which drives are available for them. Note that the optical drive bay in G series and R40e series ThinkPads is not an UltraBay in that the drives are fixed and not removable. It is however, mechanically, an UltraBay 2000-device without the surrounding "caddy".

On the media side different UltraBays relate to the form factor of the drives they accept; Some machines can accept UltraBay devices up to 12.5 mm thick, whereas others are limited to devices no more than 9.5mm thick.

The IdeaPad Y400 and Y500 laptops have an UltraBay slot which can be swapped for another hard drive, another fan or another Nvidia GT650M (or GT750M) GPU which will work in SLI with the system's primary video card for increased graphics performance. Existing orders for the UltraBay Y500 DVD Burner (no built in optical drive) were cancelled in early June, 2013.

Starting in 2014, Lenovo changed the design of the ThinkPad bay adapter and dropped the "UltraBay" terminology from use. What remained (in the ThinkPad W540 product) was an option for a removable Serial ATA (SATA) "Caddy" accessory which, with a screw driver, allowed the optical drive to be replaced with a second 2.5 inch SATA storage device. Battery expansion in the caddy bay was no longer offered, and earlier hot-swap functionality was essentially rendered difficult if not impossible.

Nomenclature

See also

• Disk enclosure
• Caddy (hardware)

References

1. "Lenovo IdeaPad Y500 Gaming Laptop". Archived from the original on 2014-12-13.
2. "Thinkpad T520 tech specs" (PDF). lenovo.com.

v t e Lenovo
Servers	Current ThinkSystem ThinkAgile Flex System Discontinued System x NeXtScale
Workstations	ThinkStation
Desktops	Business ThinkCentre A series M series Edge series Consumer and home office Current IdeaCentre A series B series Q series K series Essential desktops Legion Discontinued Erazer
Laptops	Business Current ThinkPad P series T series X series (X1 series) L series E series ThinkPad Yoga ThinkBook Discontinued ThinkPad W series Helix Twist Consumer and home office Current IdeaPad Flex Legion Essential laptops LaVie Yoga Discontinued Lenovo 3000 IdeaPad S series U series Y series Z series Miix series IdeaPad Yoga Yoga
Tablets	Current Tablet 10 IdeaPad Miix series Yoga Tab series Discontinued ThinkPad ThinkPad 8 ThinkPad 10 Tablet Tablet 2 X1 Tablet WorkPad
Smartphones and smartbooks	Business ThinkPhone Consumer Current Lenovo Vibe K4 Note P1 X Z Z2 Pro Lenovo K6 Power K12 Pro Note K13 Note P2 Phab 2 Pro Lenovo Z Series Z2 Plus IdeaPhone K900 A820 Legion Duel 2 LePhone Discontinued Skylight
Other	Software ThinkShield ThinkVantage Technologies Current PrivacyGuard ThinkShutter Discontinued UltraBay ThinkLight Displays and television sets ThinkVision LeTV Smart speakers Smart Assistant
Acquisitions	LenovoEMC Medion Motorola Mobility ZUK Mobile IBM PC business
Other	Legend Holdings Liu Chuanzhi (founder) Yang Yuanqing (CEO, 2009–) William Amelio (CEO, 2005–09)
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