USB Puzzling . . . Cooling Tray Connection


fwshaw

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OS
Windows 11 Pro
I need help understanding USB-C / USB-A interface. I thought I understood it, but that's not the case and hence I need some help.

I have a laptop with two USB-A ports on the left side and one USB-C port at the rear. I've verified all the port work by connecting external disc drives to them.

Normally, I connect a cooling fan tray, which the laptop site on top of, to one of the USB-A ports. This provides power to the three fans in the tray; only power is needed for the cooling fan tray (no other communication).

I want to move the cooling fan tray connection to the rear and use the USB-C port. I thought this was a very, very simple connection, but I've not been able to do it. I've purchased three different USB-C / USB-A cables, but when I've connected any of them directly to the C port and the fan's A port...nothing. The fans are not powered on.

I do have a Best Buy USB-C to USB-A 4 port hub that works....plug-in the USB-C plug and attach the cooling tray plugs to one of the 4 USB-A ports and the fans work fine. But, not when I use a direct cable.

What am I missing / not understanding....frustrating to be stumped by USB connection I thought was a simple "no brainer". Would appreciate you help. What cable do I need to buy to provide power to the fans via a USB-C port?

Many thanks.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    PC Laptops, LLC
    CPU
    i9-13900HX
    Memory
    64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4050
    Hard Drives
    WD Black SN850x NVMe 1TB, MSI M450 2TB
    Mouse
    Logitech MX Anywhere 2s
    Browser
    Brave
Does the Best Buy USB-C to USB-A 4 port hub have it's own power supply? Could be the ports on the computer aren't supplying sufficient power, common with USB 2 [black] ports while USB 3 [blue] ports provide more.
 

My Computers

System One System Two

  • OS
    Win11 Pro RTM
    Computer type
    Laptop
    Manufacturer/Model
    Dell Vostro 3400
    CPU
    Intel Core i5 11th Gen. 2.40GHz
    Memory
    12GB
    Hard Drives
    256GB SSD NVMe
  • Operating System
    Windows 11 Pro RTM x64
    Computer type
    PC/Desktop
    Manufacturer/Model
    Dell Vostro 5890
    CPU
    Intel Core i5 10th Gen. 2.90GHz
    Memory
    16GB
    Graphics card(s)
    Onboard, no VGA, using a DisplayPort-to-VGA adapter
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    512GB SSD NVMe, 2TB WDC HDD
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    Firefox, Edge
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    Windows Defender/Microsoft Security
No, the Best Buy USB-C to USB-A 4 port hub do NOT have a separate power supply.
 

My Computer

System One

  • OS
    Windows 11 Pro
    Computer type
    Laptop
    Manufacturer/Model
    PC Laptops, LLC
    CPU
    i9-13900HX
    Memory
    64.0 GB
    Graphics Card(s)
    NVIDIA GeForce RTX 4050
    Hard Drives
    WD Black SN850x NVMe 1TB, MSI M450 2TB
    Mouse
    Logitech MX Anywhere 2s
    Browser
    Brave
No, the Best Buy USB-C to USB-A 4 port hub do NOT have a separate power supply.


Some USB ports, of any flavor, don't supply power, or supply very little, as @Berton said.
It hasn't been standardized for some ridiculous reason.
 

My Computers

System One System Two

  • OS
    Win 11 Home ♦♦♦22631.3527 ♦♦♦♦♦♦♦23H2
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® [May 2020]
    CPU
    AMD Ryzen 7 3700X
    Motherboard
    Asus Pro WS X570-ACE (BIOS 4702)
    Memory
    G.Skill (F4-3200C14D-16GTZKW)
    Graphics Card(s)
    EVGA RTX 2070 (08G-P4-2171-KR)
    Sound Card
    Realtek ALC1220P / ALC S1220A
    Monitor(s) Displays
    Dell U3011 30"
    Screen Resolution
    2560 x 1600
    Hard Drives
    2x Samsung 860 EVO 500GB,
    WD 4TB Black FZBX - SATA III,
    WD 8TB Black FZBX - SATA III,
    DRW-24B1ST CD/DVD Burner
    PSU
    PC Power & Cooling 750W Quad EPS12V
    Case
    Cooler Master ATCS 840 Tower
    Cooling
    CM Hyper 212 EVO (push/pull)
    Keyboard
    Ducky DK9008 Shine II Blue LED
    Mouse
    Logitech Optical M-100
    Internet Speed
    300/300
    Browser
    Firefox (latest)
    Antivirus
    Bitdefender Internet Security
    Other Info
    Speakers: Klipsch Pro Media 2.1
  • Operating System
    Windows XP Pro 32bit w/SP3
    Computer type
    PC/Desktop
    Manufacturer/Model
    Built by Ghot® (not in use)
    CPU
    AMD Athlon 64 X2 5000+ (OC'd @ 3.2Ghz)
    Motherboard
    ASUS M2N32-SLI Deluxe Wireless Edition
    Memory
    TWIN2X2048-6400C4DHX (2 x 1GB, DDR2 800)
    Graphics card(s)
    EVGA 256-P2-N758-TR GeForce 8600GT SSC
    Sound Card
    Onboard
    Monitor(s) Displays
    ViewSonic G90FB Black 19" Professional (CRT)
    Screen Resolution
    up to 2048 x 1536
    Hard Drives
    WD 36GB 10,000rpm Raptor SATA
    Seagate 80GB 7200rpm SATA
    Lite-On LTR-52246S CD/RW
    Lite-On LH-18A1P CD/DVD Burner
    PSU
    PC Power & Cooling Silencer 750 Quad EPS12V
    Case
    Generic Beige case, 80mm fans
    Cooling
    ZALMAN 9500A 92mm CPU Cooler
    Mouse
    Logitech Optical M-BT96a
    Keyboard
    Logitech Classic Keybooard 200
    Internet Speed
    300/300
    Browser
    Firefox 3.x ??
    Antivirus
    Symantec (Norton)
    Other Info
    Still assembled, still runs. Haven't turned it on for 13 years?

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