Locate your laptop in the lists below to find which Horizontal Brain Cell is right for you.

The 13" MacBook Pro Retina Horizontal Brain Cell has interior dimensions of approximately 12.4 × 8.6 × 0.7 inches (314 × 219 × 19 mm), and fits these computers:

The 15" MacBook Pro Retina Horizontal Brain Cell has interior dimensions of approximately 14.1 × 9.7 × 0.7 inches (359 × 247 × 18 mm), and fits these computers:

The Size 1 Horizontal Brain Cell has interior dimensions of approximately 15.4 × 10.3 × 1.2 inches (392 × 262 × 30 mm), exterior dimensions of approximately 16.1 × 12.4 × 2.3 inches (409 × 314 × 58 mm), and fits these computers:

The Size 2M Horizontal Brain Cell has interior dimensions of approximately 15.5 × 11.4 × 1.6 inches (394 × 290 × 41 mm), exterior dimensions of approximately 16.1 × 13.7 × 2.7 inches (410 × 348 × 69 mm), and fits these computers:

The Size 2S Horizontal Brain Cell has interior dimensions of approximately 14.5 × 10.8 × 1.7 inches (368 × 275 × 43 mm), exterior dimensions of approximately 15.1 × 13.1 × 2.8 inches (384 × 332 × 71 mm), and fits these computers:

The Size 2XL Horizontal Brain Cell has interior dimensions of approximately 16.5 × 11.3 × 2.1 inches (418 × 288 × 54 mm), exterior dimensions of approximately 17.1 × 13.6 × 3.2 inches (434 × 346 × 82 mm), and fits these computers:

The Size 2XXLT Horizontal Brain Cell has interior dimensions of approximately 17.8 × 12.2 × 1.9 inches (452 × 310 × 48 mm), exterior dimensions of approximately 18.4 × 14.5 × 3.0 inches (468 × 368 × 76 mm), and fits these computers:

The Size 4 Horizontal Brain Cell has interior dimensions of approximately 13.3 × 9.5 × 1.2 inches (338 × 241 × 30 mm), exterior dimensions of approximately 13.8 × 11.7 × 2.3 inches (350 × 298 × 58 mm), and fits these computers:

The Size 4Z Horizontal Brain Cell has interior dimensions of approximately 14.3 × 9.8 × 0.9 inches (364 × 249 × 24 mm), exterior dimensions of approximately 15.0 × 12.1 × 2.3 inches (380 × 307 × 58 mm), and fits these computers:

The Size 5 Horizontal Brain Cell has interior dimensions of approximately 11.3 × 9.3 × 1.4 inches (286 × 236 × 35 mm), exterior dimensions of approximately 11.9 × 11.6 × 2.5 inches (302 × 294 × 63 mm), and fits these computers:

The Size 6T Horizontal Brain Cell has interior dimensions of approximately 12.4 × 10.0 × 1.3 inches (315 × 254 × 33 mm), exterior dimensions of approximately 13.0 × 12.3 × 2.4 inches (331 × 312 × 61 mm), and fits these computers:

The Size 6X Horizontal Brain Cell has interior dimensions of approximately 12.9 × 9.0 × 0.8 inches (327 × 228 × 19 mm), exterior dimensions of approximately 13.5 × 11.3 × 1.9 inches (343 × 286 × 47 mm), and fits these computers:

The Size 6Z Horizontal Brain Cell has interior dimensions of approximately 13.0 × 9.1 × 1.1 inches (330 × 232 × 28 mm), exterior dimensions of approximately 13.6 × 11.4 × 2.2 inches (346 × 290 × 56 mm), and fits these computers: