Question: What is the name of the convention center in which the first prototype models of the BluOnyx were first demonstrated? 

Context paragraphs:
Williams Convention Center: Judson F. Williams Convention Center, better known as the Civic Center, is located on Santa Fe Street in downtown El Paso, Texas, adjacent to the Abraham Chavez Theatre.  It was expanded in 2002 and now features 80000 sqft of columnless exhibit space (divided into three halls) with seating for up to 8,000 people.  The convention center also has three lobbies totalling 38300 sqft , including a 23000 sqft main lobby, plus 14900 sqft of meeting space.  Williams Convention Center's ceiling height is 28 ft ; the center has excellent acoustics for many conventions and concerts held at the Center.  Trade shows and other special events also held at Williams Convention Center.  The convention center is also home to the Sun Bowl Fan Fiesta.

BluOnyx: BluOnyx is a brand of Mobile Content Server introduced in December 2006 by LSI Inc (formerly Agere Systems).  The first prototype models of the BluOnyx were demonstrated at the 2007 Consumer Electronics Show in Las Vegas with mass distribution expected later in the year.  The purpose of the device is to store digital media away from the computer, creating a single place where many users with different mobile devices can connect.  The device utilizes software which is "pushed" directly onto the phones, rather than have the device connected to a computer.

Baltimore Convention Center: The Baltimore Convention Center is a convention and exhibition hall located in downtown Baltimore, Maryland.  The Center is a municipal building owned and operated by the City of Baltimore.  The facility was constructed in two separate phases: the original Center, with 425,000 sqft of exhibition and meeting space, opened in August 1979 at a cost of $51.4 million.  A $151 million expansion, which increased the Center's total size to 1225000 sqft , was completed in April 1997.  The 752-room, city-owned Hilton Baltimore hotel opened in August 2008, connected to the convention center by an enclosed skywalk bridge.  Another expansion to the Baltimore Convention Center has been proposed at an estimated cost of $400 million that includes a new 500 room hotel and an 18,500 seat arena; this project is estimated to cost $900 million, this proposal is no longer active and considered dead.  As of March 2016, the State of Maryland is going to explore expanding the Baltimore Convention Center for an estimated cost of $600 million and build a new hotel attached to the expansion.  As of August 2016, the proposal of having a combined expanded convention center, arena and hotel has been revived.  Mayor Stephanie Rawlings-Blake requested a $1 million feasibility study from the Maryland Stadium Authority which was approved on August 2, 2016.

Consumer Electronics Show: The Consumer Electronics Show (commonly known as CES) is an annual trade show organized by the Consumer Technology Association.  Held in January at the Las Vegas Convention Center in Las Vegas, Nevada, United States, the event typically hosts presentations of new products and technologies in the consumer electronics industry.

Minneapolis Convention Center: The Minneapolis Convention Center is a large convention center located in downtown Minneapolis, Minnesota.  It is located one block away from Nicollet Mall near Orchestra Hall.  The Minneapolis Convention Center has a quadruple-domed roof and because of its volume can host multiple events on the same day.  The Minneapolis Convention Center is also the largest indoor, contiguous, convention center in the Upper Midwest.

Colorado Convention Center: The Colorado Convention Center (CCC) is a multi-purpose convention center located in Downtown Denver.  The center opened in June 1990; the first event being the NBA Draft for the Denver Nuggets.  The convention center was expanded in 2004 to include several meeting rooms, two ballrooms and an indoor amphitheatre.  Since opening, the center hosts over 400 events per years.  Centrally located in Denver, the center has become one of Denver's many landmarks.  The center is adjacent to the Denver Performing Arts Complex and the Emily Griffith Opportunity School.  It is blocks away from the Colorado State Capitol, Auraria Campus and the 16th Street Mall.  It is served by the RTD light rail station, Theatre District / Convention Center.

Protofour: Protofour or P4 is a set of standards for model railways allowing construction of models to a scale of 4 mm to 1 foot (1:76.2), the predominant scale of model railways of the British prototype.  For historical reasons almost all manufacturers of British prototype models use 00 gauge (1:76.2 models running on gauge track).  There several finescale standards which have been developed to enable more accurate models than 00, and P4 is the most accurate in common use.

Kay Bailey Hutchison Convention Center: The Kay Bailey Hutchison Convention Center (originally the Dallas Memorial Auditorium and formerly Dallas Convention Center) is a convention center in the Convention Center District of downtown Dallas, Texas.  The original Dallas Memorial Auditorium was designed by George Dahl in 1957.  It holds approximately 10,000 seats.  Dahl was responsible for the renowned Art Deco buildings at the Dallas Fair Park, as well as many other Texas landmarks.  The Convention Center additions were designed by Larry Oltmanns, who was a Design Partner with Skidmore, Owings and Merrill at the time.

Puerto Rico Convention Center: The Puerto Rico Convention Center Dr. Pedro Rosselló González" (PRCC) (or "Centro de Convenciones de Puerto Rico Dr. Pedro Rosselló González" "' in Spanish) is a convention center located in Isla Grande (recently named the Convention Center District), in San Juan, Puerto Rico owned by the Puerto Rico Convention District Authority, a government agency of Puerto Rico, and managed by AEG (property management).  Designed by tvsdesign, it is the largest convention center in the Caribbean and one of the most technologically advanced in The Americas.

Visalia Convention Center: The Visalia Convention Center: is a Performing Arts theater, a hotel resort, and convention facilities in Tulare County.  The center was built and founded in Visalia, California in 1972.  The center is situated at the heart of Central California and is considered one of the premier mid-state conventions in California's Central Valley.  The Visalia Convention Center was designed and built to accommodate nearly any event requirements.  The center has 114,000 square feet of meeting space and can hold up to three-thousand people.  The center is located in Downtown Visalia, at the corner of E. Acequia & Bridge.  The center sits in walking distance of 45 locally owned restaurants, shops and the convention Center also has its own resort at the convention center called the Visalia Marriott Hotel & Resort .

Supporting paragraphs: BluOnyx Consumer Electronics Show
Answer: Las Vegas Convention Center