This product is either discontinued or we cannot get that from suppliers.
Allied Telesis AT-IE300-12GP-80 Switch Ports Hi-Poe+ UPS-AC Power Cables, Ports 8 x 10/100/1000BASE-T, Other ports 4 x SFP, Stackable No, PoE, Standard 802.3at (PoE+), PoE ports 44204, PoE budget 240 W, Ventilation Fanless, Form factor DIN rail.
Allied Telesis Managed Gigabit Ethernet Industrial Switch Ruggedised IE300 Industrial Ethernet switches provide enduring performance in harsh environments, such as those found in manufacturing and transportation.