Optional wireless module enhances your business's productivity by enabling reliable mobile printing. Enables Wi-Fi Direct printing for easy peer-to-peer wireless printing without a network. Dual band 802.11b / g / n (2.4GHz) & 802.11a / n (5GHz) helps ensure the wireless connectivity of your printer & mobile devices perform better & more reliably in Enterprise environments. Accessory Type: Wireless Module; for Use With: Brother HL-L9410CDN, HL-L9430CDN, MFC-L9610CDN, MFC-L9630CDN.