An apparatus, comprising: a memory device configured to communicate with a host over a link, wherein the memory device comprises: a plurality of memory cells; and a memory link interface configured to receive a READ command from the host over the link, retrieve READ DATA from the plurality of memory cells, and provide the READ DATA to the host over the link in accordance with an applied link protection mode in response to the READ command, or receive a WRITE command from the host over the link, receive WRITE DATA from the host over the link, and store the WRITE DATA to the plurality of memory cells in accordance with the applied link protection mode in response to the WRITE command, and wherein the memory device is configured to implement a plurality of link protection modes including a first link protection mode and a second link protection mode, wherein the link protection modes are applied to protect at different levels of protection the READ DATA or the WRITE DATA transmitted over the link from errors, and wherein the apparatus being characterised in that the memory device is configured to change from applying the first link protection mode to applying the second link protection mode in response to a link protection mode change notification received from the host, wherein the link protection mode change notification received from the host is a link speed change notification. a memory device configured to communicate with a host over a link, wherein the memory device comprises: a plurality of memory cells; and a memory link interface configured to receive a READ command from the host over the link, retrieve READ DATA from the plurality of memory cells, and provide the READ DATA to the host over the link in accordance with an applied link protection mode in response to the READ command, or receive a WRITE command from the host over the link, receive WRITE DATA from the host over the link, and store the WRITE DATA to the plurality of memory cells in accordance with the applied link protection mode in response to the WRITE command, and a plurality of memory cells; and a memory link interface configured to receive a READ command from the host over the link, retrieve READ DATA from the plurality of memory cells, and provide the READ DATA to the host over the link in accordance with an applied link protection mode in response to the READ command, or receive a WRITE command from the host over the link, receive WRITE DATA from the host over the link, and store the WRITE DATA to the plurality of memory cells in accordance with the applied link protection mode in response to the WRITE command, and receive a READ command from the host over the link, retrieve READ DATA from the plurality of memory cells, and provide the READ DATA to the host over the link in accordance with an applied link protection mode in response to the READ command, or receive a WRITE command from the host over the link, receive WRITE DATA from the host over the link, and store the WRITE DATA to the plurality of memory cells in accordance with the applied link protection mode in response to the WRITE command, and wherein the memory device is configured to implement a plurality of link protection modes including a first link protection mode and a second link protection mode, wherein the link protection modes are applied to protect at different levels of protection the READ DATA or the WRITE DATA transmitted over the link from errors, and wherein the apparatus being characterised in that the memory device is configured to change from applying the first link protection mode to applying the second link protection mode in response to a link protection mode change notification received from the host, wherein the link protection mode change notification received from the host is a link speed change notification. implement a plurality of link protection modes including a first link protection mode and a second link protection mode, wherein the link protection modes are applied to protect at different levels of protection the READ DATA or the WRITE DATA transmitted over the link from errors, and wherein the apparatus being characterised in that the memory device is configured to change from applying the first link protection mode to applying the second link protection mode in response to a link protection mode change notification received from the host, wherein the link protection mode change notification received from the host is a link speed change notification.