Adeptus Mechanicus - Tech-priests: Any member of the Cult Mechanicus over the rank of Menial will often be referred to generally as a "Tech-priest," though Magi and higher ranks are usually referred to by their rank. Tech-priests can usually be recognised by their clothing, which unless their work requires otherwise will be robes of rust-red or black colouration, and by their cybernetic nature.Some Tech-priests also carry a large wrench-like tool, that doubles as an ax-headed close-combat weapon, adorned with Adeptus Mechanicus imagery upon the head. The amount of cybernetic augmentation found in a Tech-priest is highly dependent on his or her rank within the Cult Mechanicus.A novice may have only one or two augmetic systems, if any, while very senior members may have only a few biological organs left in their bodies. Common cybernetic augmentations for Tech-priests include:Bionic limbs and organs, which may replace the originals because of an accident or simply because they provide enhanced capabilities or cater to the special needs the Tech-priest may face in their chosen work or scientific research.Bionic eyes, which allow a Tech-priest to see beyond the normal spectrum of human vision, augment or alter electromagnetic input to allow night vision or heat vision, and zoom in to magnify an image.Mechadendrites, bionic tentacles that attach to the spine to afford the Tech-priest greater mobility, greater lifting and manipulation capabilities, an easy neural interface with most other forms of technology and, in many cases, a handy weapon in a fight. These powerful devices are usually customised to suit the work needs of their wearer and can therefore include special features like medical equipment, maintenance tools or weapons. Larger Mechadendrites can often extrude a monomolecular blade or fire projectiles in combat or simply be used as a blunt instrument. A Cortical Implant is also usually required for the Tech-priest to be able to effectively control the additional limbs.Autosanguination, a process by which all the natural blood in a human body is removed and replaced with a more efficient oxygen and waste-carrying synthetic chemical substitute, allowing for the easier healing of wounds and more effective immunological defence against disease and toxins.Cortex Implants, which vary in function from simple memory circuit implants in the neurocortex intended to improve memory function to slim micro-cogitators that provide full computing abilities. Many senior Tech-priests use smaller implants of this type to preserve their mind and memories from the ravishes of time, and to lessen their dependence on fragile flesh. Cortex Implants of good quality are very rare and hard to produce, but provide the wearer eidetic memory and heighten their intelligence and ability to consume and correlate large amounts of data. Among the oldest Tech-priests only a few portions of the original brain tissue remain. The use of Cortex Implants is probably the primary reason why senior Tech-priests live far longer than the rest of the Imperial elite.Electoos, metal circuits embedded in the epidermic skin of Tech-priests to allow them to consciously channel the bioelectricity generated by their own bodies. These can be used in combat, or to revive a recalcitrant Machine Spirit. Those who specialise in the use of these and become essentially a living electricity generator are known as Electro-priests or "Luminen".Electro-grafts, which are similar to Electoos in that they are electric circuits embedded in the epidermic layer of the skin, but are distinct in their purpose. Electro-grafts serve as an interface for the Tech-priest with electronic machinery, particularly sources of digital data like Cogitators (computers). Given the right data-sources, a Tech-priest with electro-grafts can acquire many skills and much specialist knowledge instantly. One example of this are the pilots from the planet Glavia who have electro-grafts in the skin of their hands to enable them to interface with their starships with much greater efficiency.Vox-casters and voice-synthesizers, which often replace the normal speech organs of more senior Tech-priests. The quality of the synthesized voice is highly variable, from stilted and unnatural mechanical voices only as good as or worse than twenty-first century voice synthesizer standards to voices that sound almost entirely natural. The Tech-priests themselves generally do not seem to care what they sound like as long as they are understood. The main benefit of a Vox-caster appears to be that it allows the priest to communicate in what is termed "Binary". Essentially, Binary consists of bursts of coded noise with a twittering quality that can be used as an extremely effective cant known only to other members of the Adeptus Mechanicus (even the Inquisition cannot translate it) or it can be used as a means of datafile transfer.More uncommon but still occasionally seen Mechanicus cybernetic augmentations include the:Mind Impulse Unit (MIU) - The MIU is a direct neural link between a human brain and a larger piece of external machinery allowing control by thought alone as if the machinery was a part of the human's body. These are most commonly found in massive pieces of technology such as Titans, Knights and starships, and very rarely in a normal Tech-priest. Some rare Tech-priests may use an MIU to control a shoulder-mounted weapon or similar device.Binary Cortex - The Binary Cortex is created during an operation in which the brains of two Tech-priests are joined in one body. Usually used only when two Tech-priests study the same subject and otherwise align very well in their thinking.Rite of Pure Thought - The Rite of Pure Thought is an operation which replaces the human brain's creative, emotional right half with a digital Cogitator (computer). This frees the Tech-priest of any remaining human emotion, basically turning him into a work-obsessed sociopath. However, this procedure is considered somewhat extreme even among the usually unsentimental Tech-priests.