Double Dragon Power Adapter | 60W 24V 3.25A Power Supply | Replacement for Zebra 105934-053 | For Zebra Thermal Label Printers GK420D, GK420T, GK430D, GX420D, GX430T, GT800, ZD410D, ZD421D | UK

Very weird issue on a Zebra barcode printer at a customers, looked like a print head issue as it was missing bits of the print, tried everything, cleaning, changing the head, new ribbons and labels, turned it was a slightly faulty PSU, appeared to work fine but when it called for heat to melt the wax ribbon, the PSU was not always giving it correctly and this one solved it and is working fine.

I purchased myself a used Zebra GK420D thermal printer from another website. It came with a power supply but it was clearly faulty. It was also a giant brick!! So I needed a new power supply quickly since I use my thermal printer on a daily basis. This power supply is fully compatible with my Zebra GK420D and it works a treat. No issues at all and the brick is much smaller so it actually fits nicely under my desk now. Highly recommended, a reasonable price and seems like it will last forever.

The green light went out on my printer GK420D so wasnt sure whether it was the printer or the plug- My hubby is an electrician so tested the plug and said it was dead so ordered this - Came next day and could get back to work on Monday so very happy

Technical Compatibility & Build Quality: I purchased this 24V 3.25A power supply as a replacement/backup adapter for a Zebra thermal label printer. The barrel connector fits snugly into the printer's power port without any loose play or intermittent connection drops. The casing feels durable and robust, matching the build quality of original equipment manufacturer (OEM) power bricks. Thermal Performance: Unlike cheap, generic adapters that overheat during continuous use, this unit handles prolonged labeling sessions exceptionally well. Even when printing large batches of shipping labels back-to-back, the transformer block remains completely cool to the touch. The included UK power cord is of a good gauge and sits firmly in standard wall outlets. Pros: Solid, snug barrel connection prevents accidental power drops Maintains low operating temperatures even under load Clean power delivery with no electrical buzzing or interference Cons: The combined length of the mains cord and adapter cable could be slightly longer for complex cable-routing setups

I have a GK420D but didn’t get a power supply brick with it so bought one with exact spec that was required. Only fitted it recently and realised it doesn’t work reliably every now and then quite often the power cuts to the labeller and reconnects but have to reprint if it doesn’t cut again which it does. Have to now buy from different supplier.

Our old model packed up, ordered this, arrived quickly, good price and just what we needed!

I use a GC420T, which is listed as one of the printer this adapter is specifically designed for. First of all, I made a mistake and plugged it into the outlet before connecting it to the printer. When connecting it to the printer, there was a big spark, this was likely my fault you should always have both sides without power when making connections. I unplugged the cable, but when I tried to push the plug in the rest of the way it was very stiff, and when I pushed a little harder it broke off part of the printer which fell inside the case. It's too big for the socket. Don't do what I did and keep pushing because you trust it will work, buy the official power adaptor and know when to give up!! 0/10, wrecked a £300 printer to save a tenner on an adaptor. Horrible product.

Whilst this power supply does the job (bought for a GK420d), it is not a Zebra branded power supply as the seller information indicates.