Dell Y40PH-RFB is a low-profile network adapter for adding high-speed Ethernet connectivity to a compatible computer. It provides two 10G SFP+ ports, giving a system two optical network interfaces through one card.
The adapter is built around the Broadcom BCM57810S chipset and uses a PCIe interface. Its 10GBase-X SFP+ connections are intended for optical networking, making the card suitable for server and network setups that use SFP+ links.