The SFP-10G-ZR (Small Form-Factor Pluggable 10 Gigabit ZR) is a long-range optical transceiver designed for 10 Gigabit Ethernet connections. The "ZR" designation indicates that it is optimized for long-distance reach. As of my last knowledge update in January 2022, the SFP-10G-ZR is designed for distances significantly longer than those covered by standard short-range or intermediate-range SFP modules.

The SFP-10G-ZR transceiver is typically used for connections over single-mode fiber (SMF). The minimum distance supported by SFP-10G-ZR is often in the range of several kilometers, but the exact minimum distance may vary depending on the specific module and manufacturer. In general, it's not commonly used for very short-distance connections.

To get the most accurate and up-to-date information regarding the minimum distance supported by the SFP-10G-ZR transceiver, it is recommended to refer to the documentation provided by the transceiver manufacturer or consult the specifications provided by the networking equipment vendor. The documentation will specify the supported distances, optical power budgets, and other relevant details for proper deployment in your network.