# simd_packed_uchar2 A packed vector of two 8-bit unsigned integer elements. ``` typealias simd_packed_uchar2 = SIMD2 ``` ## Topics ### Alternative Type Alias [`packed_uchar2`](/documentation/simd/packed_uchar2) --- Copyright © 2026 Apple Inc. All rights reserved. | [Terms of Use](https://www.apple.com/legal/internet-services/terms/site.html) | [Privacy Policy](https://www.apple.com/privacy/privacy-policy)