{"product_id":"psu-for-500w-power-supply-dps-500ab-20a-replacement-unit-reliable","title":"PSU for 500W Power Supply DPS-500AB-20A Replacement Unit - Reliable","description":"\u003cp\u003eOur review looks at the PSU for 500W Power Supply DPS-500AB-20A, a direct replacement option for systems requiring part numbers 746177-002, 849655-003, PS-8501-2, and 849655-001. For technicians and DIY system builders needing a like-for-like internal power supply, this unit stands out for its straightforward compatibility and purpose: it is intended as a replacement PSU for systems designed around these specific models. In this review the biggest reason to buy is compatibility-the product is clearly positioned as a direct swap for those exact part numbers, which can save time and trouble when restoring a desktop or server to working order.\u003c\/p\u003e\u003ch2\u003eKey Features\u003c\/h2\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eDirect compatibility:\u003c\/strong\u003e Designed to replace DPS-500AB-20A and matching service part numbers, reducing trial-and-error when sourcing a replacement.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e500W capacity:\u003c\/strong\u003e Provides the power budget expected from a 500W PSU, suitable for typical midrange desktop and small server configurations.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eMultiple referenced part numbers:\u003c\/strong\u003e Lists 746177-002, 849655-003, PS-8501-2, and 849655-001 so technicians can match it against existing labels quickly.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eInternal power supply form:\u003c\/strong\u003e Intended as an internal component, allowing a clean factory-style replacement rather than an external adapter.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eSingle-purpose design:\u003c\/strong\u003e Focused on being a compatible replacement rather than a feature-rich aftermarket unit, keeping installation straightforward.\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch2\u003eWho It's For\u003c\/h2\u003e\u003cp\u003eThis PSU is for users who have a desktop or server that originally shipped with a DPS-500AB-20A style power supply or the listed service part numbers and need a drop-in replacement. IT technicians, refurbishers, and experienced DIYers will appreciate the clarity of the compatibility listing when performing repairs or rebuilds.\u003c\/p\u003e\u003cp\u003eIt is not for users seeking a modular, high-efficiency, or gaming-oriented aftermarket PSU with aesthetic features; those wanting advanced cooling, RGB, or higher efficiency ratings should look at dedicated retail power supplies designed for performance upgrades.\u003c\/p\u003e\u003ch2\u003ePros \u0026amp; Cons\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003ePros\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\n\u003cli\u003eDirect part-number match simplifies replacement and reduces the risk of ordering the wrong unit.\u003c\/li\u003e\n\u003cli\u003e500W output covers common midrange system needs without overkill complexity.\u003c\/li\u003e\n\u003cli\u003eInternal form factor restores original system layout and cabling compatibility.\u003c\/li\u003e\n\u003c\/ul\u003e\u003cp\u003e\u003cstrong\u003eCons\u003c\/strong\u003e\u003c\/p\u003e\u003cul\u003e\u003cli\u003eLimited specification detail provided beyond compatibility, so buyers who require exact rail voltages or efficiency certifications may need to verify with their system documentation.\u003c\/li\u003e\u003c\/ul\u003e\u003ch2\u003eSpecifications\u003c\/h2\u003e\u003ctable\u003e\n\u003ctr\u003e\n\u003ctd\u003eProduct Type\u003c\/td\u003e\n\u003ctd\u003eInternal power supply (PSU)\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eRated Power\u003c\/td\u003e\n\u003ctd\u003e500W\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003ePrimary Model\u003c\/td\u003e\n\u003ctd\u003eDPS-500AB-20A\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eCompatible Part Numbers\u003c\/td\u003e\n\u003ctd\u003e746177-002, 849655-003, PS-8501-2, 849655-001\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eIntended Use\u003c\/td\u003e\n\u003ctd\u003eReplacement for compatible desktops and servers\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eBrand\u003c\/td\u003e\n\u003ctd\u003eNovaEluc\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003c\/table\u003e\u003ch2\u003eOur Verdict\u003c\/h2\u003e\u003cp\u003eThis PSU is a sensible purchase for anyone who needs a like-for-like replacement for a DPS-500AB-20A or the listed service part numbers. It delivers the expected 500W capacity in an internal form factor and removes much of the guesswork when matching parts. For repairs and restorations it offers solid value, while those seeking upgraded efficiency or modular convenience should consider a purpose-built aftermarket alternative.\u003c\/p\u003e\u003ch2\u003eFrequently Asked Questions\u003c\/h2\u003e\u003cp\u003e\u003cstrong\u003eWill this replace my DPS-500AB-20A?\u003c\/strong\u003e\u003cbr\u003eYes, it is marketed specifically as a replacement for DPS-500AB-20A and the listed service part numbers, making it suitable as a direct swap when physical and connector layouts match.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eIs this a modular or external PSU?\u003c\/strong\u003e\u003cbr\u003eNo, this unit is an internal power supply intended to replace the original internal PSU rather than a modular or external adapter.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eDoes it include efficiency certification details?\u003c\/strong\u003e\u003cbr\u003eEfficiency or certification specifics are not listed in the product description, so check your system documentation or contact the seller if those details are required.\u003c\/p\u003e","brand":"NovaEluc","offers":[{"title":"Default Title","offer_id":48264150122715,"sku":"B09M8MTTJR","price":100.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0724\/1043\/1707\/files\/614xNdVAqpL._SL1000.jpg?v=1778284286","url":"https:\/\/gearmusthave.com\/products\/psu-for-500w-power-supply-dps-500ab-20a-replacement-unit-reliable","provider":"GearMustHave","version":"1.0","type":"link"}