GCH-555-class heavy cruiser
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Production information
Manufacturer:	Geth Armoury
Model:	GCH-555
Class:	Cruiser
Operator(s):	Geth Navy Geth Heretic Navy
Preceded by:	GCH-554-class
Succeeded by:	GCH-556-class
Technical information
Length:	361.5m
Width:	202.4m
Height/depth:	234m
Max acceleration:	21 kilometers per second
Engine unit(s):	Element Zero Drive Core
Power plant:	3 Element Zero drive cores
Shielding:	Kinetic Barrier
Hull:	800cm of Exess-B60 Ablative Medium Armor
Sensor systems:	LIDAR Radar Spectroscope
Targetting system:	Shipwide geth programs
Armament:	9 GARDIAN 100 plasma torpedoes 50 port side 50 starboard side 18 defense guns 9 port side 9 starboard side 12 Type-40 Gauss cannons 6 port side 4 starboard side 1 chin-mounted 1 rear-mounted
Crew:	6,000-11,000 platforms
Usage
Commissioned:	March 26, 2137 CE
Decommissioned:	July 7, 2185 CE
Role(s):	Destroy enemy corvettes, frigates, destroyers, light cruisers and other heavy cruisers Patrol and defend geth borders
Era:	Asari Cycle Pax Galactica Era
Affiliation:	Geth Navy Geth Heretic Navy

The Geth Cruiser, Heavy-555 Class (abbreviated GCH-555 Class Heavy Cruiser) was a classification of cruiser that served in the Geth Navy and Geth Heretic Navy from 2137 CE to mid-2185 CE. Succeeding the GCH-554 Class, this class of cruiser was cited has having tougher shields and armor, as well as being bigger than its predecessor, allowing for a larger compliment of ship-to-ship weaponry. Unlike light cruisers, which were better suited for patrols, this class of heavy cruiser was perfect for prolonged combat engagements, allowing it to destroy enemy frigates and destroyers with lethal ease. These combat capabilities was observed during the Eden Prime War. While observed at the Battle of Virmire, it was not until the Battle of the Citadel that they would be fought in combat, where they were shown to be far superior to the turian and salarian cruisers, even managing to deal severe damage to dreadnoughts such as the Destiny Ascension. 

The geth heretics continued to use the GCH-554 for many years after the Eden Prime War, right up until they were absorbed back into the geth.