This is a used pcb board for a Arachnid English Mark Darts model 6300 Dart machine (the type shown in one of the pictures below). It probably works fine (sold "as-is" because we do not have a means to test these and also cannot be sure it will be properly re-installed). These were pulled from working dart machines approx. 10 years ago when the cabinets were upgraded to the Galaxy system (although in hindsight the 6300 was a much more dependable system). This board has been sitting on a shelf ever since. If you have a 6300 dart machine then this is a great opportunity to pick up a spare logic board for a low price.This particular board has a ver. 2.7 eprom chip. Please note that these boards are for machines equipped with super-spider dart heads. If you have the older version pre super-spider dart head then you will need additional interfacing parts in order to use this CPU board with that head. We do have those parts available in limited quantities, contact us for additional information. If your dart head is the Super-Spider then this board will work as is. The Super Spider dart head has the yellow frame that is more or less flush with the segments. On the earlier (pre Super-Spider) Arachnid dart heads the yellow frame is actually running above the segments. The frame runners are triangular with the upper point sticking out about a quarter inch beyond the surface of the segments. That is the easiest way to identify which type of dart head you have (see photos). If you have the heavy yellow non flush frame then you have the earlier style and would need the additional parts to use this board with that dart head. Blackhawk Music has been in the coin-op business since 1937. After 70 years we know what we are doing when it comes to video games and other coin-operated machines. Take a look at our 100% positive feedback and you will see that we go the extra mile to satisfy all of our customers. You will not be disappointed in our service. Winning bidder must pay for UPS ground shipping, Shipments outside the US will pay the actual cost of shipping, usually via the Post Office. We accept Visa/MasterCard or paypal (paypal is our preferred payment method, and the only payment method accepted from bidders located outside the U.S.A.). Illinois residents must pay State sales tax of 6.75%. Please contact us within three days of auction end with your shipping address. Feel free to email for any additional information. This part was working when removed but since we have no way to insure proper re-installation of this electronic part it is being offered and sold in "as-is" condition. Picture is representative and may not be of the actual board you receive although it will be the same type of board. Check out our coin-op items for sale at . We reserve the right to cancel bids from bidders with low (less than +5) or negative feedback. If you have low feedback please email us before bidding so we know you are serious. We regret having to institute this rule but too many bidders with low or zero feedback have not followed through on their bids. Thanks for looking and good luck bidding.