HP SD 4 Card Reader Zx G4, SD, SDHC, SDXC, Black, Z4 G4, Z6 G4, Z8 G4, Business, USB 3.2 Gen 1 (3.1 Gen 1), 29 mm HP SD 4 Card Reader Zx G4. Compatible memory cards: SD, SDHC, SDXC, Product colour: Black, Compatible products: Z4 G4, Z6 G4, Z8 G4. Interface: USB 3.2 Gen 1 (3.1 Gen 1). Width: 29 mm, Depth: 23.6 mm, Height: 3.1 mm. Windows operating systems supported: Windows 10