Editing Hi-Tek Series 725 first generation (section)

===Rear cover===
The rear cover is essentially flat with a "V" shaped trough that runs the laterally a few centimeters below the top edge. The cover is black. Early models have rear covers made of painted steel while some later models feature molded black plastic with a slight texture. The early models also have a pair of grounding screws which are not present on later models.

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====Markings====  
A 4 digit date code is stamped in white paint on the rear cover. The format of the date code is MMYY. Most also have a 5 or 6 digit serial number sticker affixed to the rear cover. Later models may have a part number sticker listing part number, revision and code. At least on example has a "Made in Taiwan" sticker.
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