[Samsung Galaxy S10 Questions & Answers] skydeaner:
No but I don't see that being too relevant but who knows. The system is a few generations old Asus sabertooth z87, i7 4770k@4.8, 16gb of 2400mhz ddr3, the aforementioned raid 0 with Samsung 840 evo ssds and a 4tb wd blue label for storage.

Since reading previously I also tried transferring to the 4tb magnetic drive with the same results. And the same transfer speed over wifi has me really thinking it is something with the phone. The test transfer files are 1gb episodes of a TV show x264 compression format, 30 of them.

I will probably be transferring such items often enough I need to get this fixed darn it.

I can transfer stuff from a ****ty SanDisk usb3 jump drive (years old) to the pc at over 50MB/s

Well I messed around on the pc and apparently it won't connect at usb3. Says it is usb3 and superspeed capable but won't negotiate to it for some reason. My jump drive has no problem with it so it's not the port. Maybe Samsung sends a ****ty cord but I don't have another to test with. Going to my amd machine and trying it there, maybe it's an Intel driver problem. But then again, it not going any faster over wifi... This is escalating quickly lol

Meh, same transfer speeds on the amd system, no hub, direct to motherboard usb3 ss labeled blue ports. I don't even want to take the time grabbing the debug info, I'm sure it is the same usb2 fast mode not usb3 ss.

Tried removing and deleting samsung drivers, installing proprietary samsung usb drivers from their development site and connecting phone again, same thing, here is the usb info

=========================== USB Port2 ===========================

Connection Status : 0x01 (Device is connected)

Port Chain : 3-2

Properties : 0x01

IsUserConnectable : yes

PortIsDebugCapable : no

PortHasMultiCompanions : no

PortConnectorIsTypeC : no

ConnectionIndex : 2

CompanionIndex : 0

CompanionHubSymLnk : USB#ROOT_HUB30#4&1ed8c4ae&0&0#{f18a0e88-c30c-11d0-8815-00a0c906bed8}

CompanionPortNumber : 17

======================== USB Device ========================

+++++++++++++++++ Device Information ++++++++++++++++++

Device Description : SAMSUNG Mobile USB Composite Device

Device Path : \\?\usb#vid_04e8&pid_6860#r58m236x6hx#{a5dcbf10-6530-11d2-901f-00c04fb951ed}

Device ID : USB\VID_04E8&PID_6860\R58M236X6HX

Hardware IDs : USB\VID_04E8&PID_6860&REV_0400 USB\VID_04E8&PID_6860

Driver KeyName : {36fc9e60-c465-11cf-8056-444553540000}\0010 (GUID_DEVCLASS_USB)

Driver : \SystemRoot\system32\DRIVERS\ssudbus.sys (Version: 2.11.11.0 Date: 2014-12-02)

Driver Inf : C:\WINDOWS\inf\oem56.inf

Legacy BusType : PNPBus

Class : USB

Class GUID : {36fc9e60-c465-11cf-8056-444553540000} (GUID_DEVCLASS_USB)

Interface GUID : {a5dcbf10-6530-11d2-901f-00c04fb951ed} (GUID_DEVINTERFACE_USB_DEVICE)

Service : dg_ssudbus

Enumerator : USB

Location Info : Port_#0002.Hub_#0003

Location IDs : PCIROOT(0)#PCI(1400)#USBROOT(0)#USB(2), ACPI(_SB_)#ACPI(PCI0)#ACPI(XHC_)#ACPI(RHUB)#ACPI(HS02)

Container ID : {4f888293-db1a-5203-8af9-13e37d32f8f3}

Manufacturer Info : SAMSUNG Electronics Co., Ltd.

Capabilities : 0x94 (Removable, UniqueID, SurpriseRemovalOK)

Status : 0x0180600A (DN_DRIVER_LOADED, DN_STARTED, DN_DISABLEABLE, DN_REMOVABLE, DN_NT_ENUMERATOR, DN_NT_DRIVER)

Problem Code : 0

Address : 2

Power State : D0 (supported: D0, D3, wake from D0)

Child Device 1 : Galaxy S10e (SM-G970U)

DevicePath : \\?\usb#vid_04e8&pid_6860&ms_comp_mtp&samsung_android#6&1bf836f8&2&0000#{6ac27878-a6fa-4155-ba85-f98f491d4f33}

KernelName : \Device\000000f3

Device ID : USB\VID_04E8&PID_6860&MS_COMP_MTP&SAMSUNG_ANDROID\6&1BF836F8&2&0000

Class : WPD

Child Device 2 : SAMSUNG Mobile USB Modem

DevicePath : \\?\usb#vid_04e8&pid_6860&modem#6&1bf836f8&2&0001#{2c7089aa-2e0e-11d1-b114-00c04fc2aae4}

KernelName : \Device\000000f4

Device ID : USB\VID_04E8&PID_6860&MODEM\6&1BF836F8&2&0001

Class : Modem

COM-Port : COM3 (\Device\ssudmdm0000)

+++++++++++++++++ Registry USB Flags +++++++++++++++++

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Control\UsbFlags\04E868600400

osvc : REG_BINARY 01 01

SkipContainerIdQuery : REG_BINARY 01 00

---------------- Connection Information ---------------

Connection Index : 0x02 (2)

Connection Status : 0x01 (DeviceConnected)

Current Config Value : 0x02

Device Address : 0x1C (28)

Is Hub : 0x00 (no)

Number Of Open Pipes : 0x06 (6)

Device Bus Speed : 0x02 (High-Speed)

Pipe0ScheduleOffset : 0x00 (0)

Pipe1ScheduleOffset : 0x00 (0)

Pipe2ScheduleOffset : 0x00 (0)

Pipe3ScheduleOffset : 0x00 (0)

Pipe4ScheduleOffset : 0x00 (0)

Pipe5ScheduleOffset : 0x00 (0)

Data (HexDump) : 02 00 00 00 12 01 10 02 00 00 00 40 E8 04 60 68 ...........@..`h

00 04 07 08 09 02 02 02 00 1C 00 06 00 00 00 01 ................

00 00 00 07 05 81 02 00 02 00 00 00 00 00 07 05 ................

01 02 00 02 01 00 00 00 00 07 05 82 03 1C 00 06 ................

00 00 00 00 07 05 84 03 0A 00 09 00 00 00 00 07 ................

05 83 02 00 02 00 00 00 00 00 07 05 02 02 00 02 ................

00 00 00 00 00 .....

--------------- Connection Information V2 -------------

Connection Index : 0x02 (2)

Length : 0x10 (16 bytes)

SupportedUsbProtocols : 0x03

Usb110 : 1 (yes)

Usb200 : 1 (yes)

Usb300 : 0 (no)

ReservedMBZ : 0x00

Flags : 0x02

DevIsOpAtSsOrHigher : 0 (Is not operating at SuperSpeed or higher)

DevIsSsCapOrHigher : 1 (Is SuperSpeed capable or higher)

DevIsOpAtSsPlusOrHigher : 0 (Is not operating at SuperSpeedPlus or higher)

DevIsSsPlusCapOrHigher : 0 (Is not SuperSpeedPlus capable or higher)

ReservedMBZ : 0x00

Data (HexDump) : 02 00 00 00 10 00 00 00 03 00 00 00 02 00 00 00 ................

This usb stuff is all very interesting and I'd like to get i fixed, but it still doesn't explain why the slow transfer over wifi either. Weird.