Longdex
11 Inch 24-Pin to 8-Pin 18AWG ATX PSU Power Supply Adapter Cable for Motherboards
Bottom line: The 11 Inch 24-Pin to 8-Pin 18AWG ATX PSU Power Supply Adapter Cable: Converts a standard 24-pin ATX PSU output to Dell's 8-pin motherboard connector; main trade-off: only for 8-pin Dell-style boards; no use on standard 24-pin ATX motherboards.
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Pros & Cons
Pros
- ✓ Converts a standard 24-pin ATX PSU output to Dell's 8-pin motherboard connector
- ✓ Built-in 12VSB booster raises +5VSB standby to the +12VSB Dell boards require
- ✓ 1007-rated 18AWG copper wire with a 0.18x34 core, rated for PSUs up to 1000W
- ✓ Listed for Dell 3020, 7020, 9020 plus H61, H81, Q77, Q87 and B75 boards
- ✓ 11-inch (28 cm) length reaches the board header without a lot of excess cable
Cons
- ✗ Only for 8-pin Dell-style boards; no use on standard 24-pin ATX motherboards
- ✗ 11-inch length may be short for full-tower cases or distant PSU mounts
- ✗ Booster panel is an extra component you have to secure and route in the case
- ✗ Compatibility is listed by model; check your board's 8-pin header before buying
Manufacturer description
Replacing a failed Dell power supply with a standard ATX unit? The Longdex 24-pin to 8-pin ATX PSU adapter cable converts a regular 24-pin power supply connector into the 8-pin dedicated interface Dell uses. The listing names Dell 3020, 7020 and 9020 systems, plus boards built on H61, H81, Q77, Q87, B75, A75, Q75 and Q65 chipsets. The most important part is the built-in 12VSB booster panel. A conventional ATX supply provides +5VSB standby power, but these Dell boards expect +12VSB. The booster raises the standby rail to that level, which a simple pin-to-pin cable cannot do. The cable uses…
SpecPicks Verdict
SpecPicks scored 11 Inch 24-Pin to 8-Pin 18AWG ATX PSU Power Supply Adapter Cable using a rating × review-volume × price-fit model applied to published specs and reviews across the power supplies category. Longdex's power supplies lineup sits within the broader category mid-tier; price and specs are the deciding factors over brand loyalty here. Judge it on the specification table and the price rather than on sentiment: check the figures that decide your use case, then put it side-by-side with two or three close alternatives in the Compare tool before clicking through.
Common buyer scenarios for power supplies of this kind: matching it to an existing build, replacing a failing part, or upgrading from a previous-generation equivalent. Check the spec table below against your current setup — particularly socket / form-factor / power-rating fields — and confirm compatibility on the retailer's listing before purchase. Prices and stock are set by the retailer and may have moved since this page was last updated.
Frequently Asked Questions
Will this adapter work with a Dell 3020, 7020 or 9020?
Yes. The Longdex listing names the Dell 3020, 7020 and 9020 as compatible, along with boards using H61, H81, Q77, Q87, B75, A75, Q75 and Q65 chipsets. It connects a standard 24-pin ATX power supply to the 8-pin power header on these boards.
Why does this cable have a 12VSB booster board?
Standard ATX power supplies output +5VSB standby power, but Dell's 8-pin boards expect +12VSB. The included booster panel raises the +5VSB to +12VSB so the board gets the standby voltage it needs. A plain pin-to-pin adapter does not do this.
What size power supply can I use with this adapter?
The cable uses 18AWG copper wire (1007-rated, 0.18x34 core) and the listing rates it to support a power supply of up to 1000W. Choose a PSU with a standard 24-pin main connector.
How long is the cable, and will it reach my motherboard?
The cable is 28 cm (11 inches) long. That is enough for most standard PSU-to-motherboard routes, but measure the distance in your case first, especially in a full tower or with a bottom-mounted PSU.
Can I use this on a regular 24-pin ATX motherboard?
No. It only converts a 24-pin PSU connector to an 8-pin board connector for Dell-style motherboards. A standard ATX motherboard with a 24-pin header connects directly to the power supply and does not need this adapter.
Key Features
- Compatible with 3020, 7020, 9020 ,H61, H81, Q77, Q87, B75, A75, Q75, Q65.
- The Power Cable can convert the regular 24-pin power supply into 8-pin dedicated power supply interface.
- The converter line comes with a 12VSB booster panel, which boosts the +5VSB of the conventional power supply to the +12VSB required by Dell.
- Adopt 18AWG standard wire, 0.18x34 copper core, support 1000W power supply.
- Cable Length: 28 cm/11 Inches. Package Including:1PC.
Full Specifications
| Brand | Longdex |
|---|---|
| Color | Black |
| Gauge | 18 |
| Model | ATXPSUPSAC-24T8-1 |
| Wattage | 1000 watts |
| Cable Type | ATX |
| Item Shape | Round |
| Model Name | 24-Pin to 8-Pin Adapter Cable |
| Unit Count | 1 Count |
| Item Length | 11 inches |
| Part Number | ATXPSUPSAC-24T8-1 |
| Cable Length | 28 cm/11 Inches. Package Including:1PC. |
| Connector Type | 24 Pin ATX |
| Number of Pins | 24 |
| Maximum Current | 10 A |
| Number of Items | 1 |
| Special Feature | Data Transfer, Converter Cable, Booster Panel |
| Connector Gender | Male-to-Male |
| Compatible Devices | Laptop, Monitor |
| Indoor Outdoor Usage | Indoor, Outdoor |
Ready to buy?
11 Inch 24-Pin to 8-Pin 18AWG ATX PSU Power Supply Adapter Cable for Motherboards is listed on Amazon. Price, availability, shipping and returns are set by Amazon and its sellers — check the listing for current terms. SpecPicks earns a small commission on qualifying purchases — thank you for supporting independent review work.
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