Western Digital Networking Roadshow Campaign Summary 11.14.12 ® Event Results Summary 1 of 3 (9/13/12– 9/23/12) Event Date/Loc Entered Perimeter Entered Airstream Brochure Swag (Multiple Offers 9/13 Investor Conference Dana Pt. 75 75 N/A N/A N/A 550 550 600 N/A N/A 350 275 500 300 N/A 173 138 500 400 250 9/18 Office Max San Francisco 132 79 150 150 150 9/21 BBY CA HQ Vancouver 298 291 300 700 N/A 9/22 BBY CA Coquitlam Vancouver 196 155 195 355 N/A 9/23 BBY CA Richmond Vancouver 382 269 400 650 N/A Items Per Person) 9/14 WD HQ Irvine 9/15 Eat See Hear 9/17 Fry’s San Jose ® Event Results Summary 2 of 3 (9/29/12– 10/6/12) Event Date/Loc Entered Perimeter Entered Airstream Brochure Swag (Multiple Offers 9/29 Office Depot Denver, CO 74 38 100 200 N/A 9/30 Peter Gabriel Red Rocks, CO 1,000 73 1,000 600 N/A 10/3 Office Max Minneapolis, MN 67 53 60 160 N/A 10/4 Best Buy US HQ Richfield, MN 600 600 500 N/A – ran out N/A 10/5 Tiger Direct Chicago, IL 62 55 60 180 N/A 10/6 Office Max Woodridge, IL 76 66 80 240 N/A Items Per Person) ® Event Results Summary 3 of 3 (10/11/12– 10/22/12) Event Date/Loc Entered Perimeter Entered Airstream Brochure Swag (Multiple Offers 10/11 Comic Con Day 1 NY, NY 2,000 1,045 1,000 2,400 1,000 10/12 Comic Con Day 2 NY, NY 5,000 2,500 2,500 3,500 1,000 10/13 Comic Con Day 3 NY, NY 6,000 3,000 3,000 4,000 1,000 10/14 Comic Con Day 4 NY, NY 6,000 3,500 3,500 1,200 N/A – ran out 10/16 Staples Boston, MA 31 30 30 60 N/A 10/18 Staples Narberth, PA 30 25 30 60 N/A 10/19 Office Depot Lansdowne, MD 82 56 30 60 N/A 10/20 Office Depot Reston, VA 118 93 1,100 (nearby Verizon store took qty for its customers) 350 N/A 10/22 Office Max Austell, GA 49 45 50 50 N/A Items Per Person) ® Broadcast Summary Atlanta WNNX-FM & WSTR-FM $9,877 Net 139 Spots Baltimore WLIF-FM & WQSR-FM $7,044 Net 111 Spots Chicago WVAZ-FM, WLS-FM, WLUP-FM, WLIT-FM & WXRT-FM $13,670 Net 186 Spots Denver KXKL-FM, KBPI-FM, KBCO-FM, KTCL-FM & KWOF-FM $6,271 Net 197 Spots ® Broadcast Summary Minneapolis KXXR-FM, KQRS-FM, KQQL-FM, KZJK-FM & WGVX-FM $7,813 Net 259 Spots Philadelphia WOGL-FM, WRDW-FM & WRFF-FM $8,763 Net 134 Spots San Francisco KFOG-FM, KMVQ-FM & KSAN-FM $32,518 Net 332 Spots Vancouver CFMI-FM, CFUN-FM, CKZZ-FM $12,657 Net 306Spots Washington DC WBIG-FM & WRQX-FM $11,027 Net 104 Spots ® Remote Summary ® US WD Stream Campaign Results Summary (9/13/12 – 11/5/12) Product WD Stream US Display Impressions Clicks 18,039,832 24,602 Click Through Rate & Engagement Rate by Media Vehicle CTR 0.14% ER 0.13% US Desktop Landing Page Product Visits Av. Time Spent Next Rate WD Stream 59,931 2:44 66.47% US Mobile Landing Page Product Visits Av. Time Spent Next Rate WD Stream 3,178 3:21 37.10% Desktop Viewed Map – 2,183 Entered Sweepstakes – 50,004 Found Router – 1,346 Mobile Entered Sweepstakes - 890 Found Router - 121 Click Through Rate & Engagement Rate by Week Most popular “Learn More” button clicked was the n900c. ® Engagement Rate = Post Click + Post Impression Page Views of WD divided by Impressions. (Counts all page views on any WD page from users who saw or clicked on banners in the last 30 days). US WD Stream Campaign Results Summary (9/13/12 – 11/5/12) ® Engagement Rate = Post Click + Post Impression Page Views of WD divided by Impressions. (Counts all page views on any WD page from users who saw or clicked on banners in the last 30 days). US WD Stream Campaign Results Summary (9/13/12 – 11/5/12) Key Highlights: • Best Performing ad was the Promoted Story asking users to Spot the Difference • 2.23% Social Shares • 1.01% CTR / 4.41% Social CTR • 9,382 Actions • 336 Likes ® US WD Stream Campaign Results Summary (9/13/12 – 11/5/12) Promoted Tweets ® Social Media Results Summary (9/13/12– 11/5/12) Twitter: • 2,362 New Followers • 2,456 Total Conversations involving hashtag #WDStream • 409 Re-tweets of WD Roadshow tweets Facebook: • 357,500 organic impressions for posts about the roadshow • 5,439 new organic page Likes • 2,846 Likes on Roadshow themed posts • 287 Comments on Roadshow themed posts Foursquare: • 35 WD Stream Tour @ Comic Con NYC venue check-ins • 32 special unlocks ®