12V-2×6 “H++” Connector Offers Up To 675W GPU Power Delivery Versus 600W 12VHPWR “H+” Plug

19.02.2024 - 13:40 / wccftech.com / Hassan Mujtaba

The latest 12V-2x6 "H++" power connector recently made debut on the NVIDIA GeForce RTX 40 SUPER series GPUs and offers slightly higher power delivery versus the existing 12VHPWR "H+" connectors.

NVIDIA GeForce RTX 40 SUPER GPUs With 12V-2x6 "H++" Connectors Can Support Up To 675W Power Delivery

The 12VHPWR connector has been a topic of discussion ever since its debut and all for the wrong reasons. The connector marked a big flaw in NVIDIA's GeForce RTX 4090 GPUs with cards burning up right and left. This led to PCI-SIG issue a revision under the 12V-2x6 connector design which tried to amend some of the issues but ultimately, it was too little too late as lots of gamers had already bought the graphics card with the older connector design. Cable manufacturers tried to woo gamers by offering right-angled connectors to make plugging in the cable easier without any bends but that didn't turn out well either as CableMod had to recall several thousand connectors which resulted in over $74K worth of property damages.

Related Story Adapter Disaster! CableMod Recalls 25,300 12VHPWR Adapters As Damages Reach $75K

Well, the new 12V-2x6 connector had silently been rolled out with the older Non-SUPER cards but it looks like its formal debut occurred with the most recent NVIDIA GeForce RTX 40 SUPER series that are mostly equipped with these new power plugs. It should be noted that all three SUPER cards, the RTX 4080 SUPER, 4070 Ti SUPER, and 4070 SUPER have featured the Gen5 connectors but a few 4070 SUPER variants still adopt the standard 8-pin plugs though there aren't a lot of those.

• H++ Power Connector = 12V-2x6 Design (675W Power Delivery)
• H+ Power Connector = 12VHPWR Design (600W Power Delivery)

@wxnod has given a closer look at the new Gen5 high-power interfaces which come in two flavors. The H++ design is based on the new 12V-2x6 connector revision which supports a maximum of 675W power delivery while the H+ design is based on the older 12VHPWR design with a max of 600W power delivery. Both plugs look nearly identical but you can tell which one you have only by removing the top shroud as they are labeled.

Do note that there are still a few NVIDIA GeForce RTX 40 SUPER GPUs that still feature the H+ plug but users shouldn't worry a lot since most of the burning issues only occurred with the GeForce RTX 4090 GPUs. The rest of the cards should be fine even when using the previous spec but users are advised to still check if the plugs are properly inserted within their GPU for optimal operation.

NVIDIA is most likely expected to keep the Gen5 H++ power connector design around for its next-gen GPUs and AMD has also proposed the idea of utilizing the new connectors but only when they are confident enough that the