The cruiser's main armament consisted of eight BL Mk XI* 50 calibre guns. This was supplemented by a single QF 3-inch anti-aircraft gun, two .303-inch Maxim guns, and two 21-inch (533 mm) torpedo tubes (with seven torpedoes carried). A single QF 12-pounder 8 cwt gun field gun, four QF 3-pounder Hotchkiss saluting guns were also carried. Armour plating consisted of side belts thick amidships, tapering to thick at the bow and stern, along with protective decking over the engineering and magazine spaces, and an armoured conning tower.