This product is either discontinued or we cannot get that from suppliers.
Cisco SG220-50P-K9-AU Sg220-50p 50-port Gigabit, Port 48 x 10/100/1000 PoE, 2 x Gigabit RJ45/SFP, Speed 10/100/1000Mbps, Jumbo Frames 9216 bytes, Buffer Memory12MB, Power 100 - 240V 47 - 63 Hz, internal.
The Cisco 220 series switches provide security, performance, and ease of use for small and midsize businesses on a restricted budget. It builds a simple, highly secure, and smart business network at a lower cost than you can with fully managed switches.