Reall slow backups to nvme externsal usb drive (and solution).


cereberus

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I have an nvme external drive and by backups were very slow from SS USB 3.1/2 ports. Even manual copying of files was at max 40 MB/s. I know I should get nearer 500-600 MB/s (real world speeds).

I tried all the usual advice - checking cables, updating drivers, checking bios up to date etc.

Googled around and surprising little advice (same advice from MS regurgitated by wannabe tech reporters - almost word for word)

I persisted google, and was on some forum, and the guy explained most usb cables just did not live up to claims, and most pcs default to usb2 speeds if anthing is not perfect. It recommended you ensure cables are marked 20Gbps (or 10 GBps) or SS (superspeed but my cables marked SS just did not cut the mustard!).
It seems ost usb c cables are really only designed to charge mobile phones rather than high speed transfer.

So I went on Amazon and found these cables


and decided to try them (great thing about Amazon is returning stuff is easy).

Bam - my copy / backup speeds went from 40 MB/S to around 600 MB/s.

So, it is obviously important to get quality cables.

I am sure this is well known to many users here, but I thought it was worth posting to others frustrated by slow external drive speeds as a possible solution.
 

My Computer My Computer

At a glance

Windows 11 Pro + Win11 Canary VM.I9 13th gen i9-13900H 2.60 GHZ16 GB solderedIntegrated Intel Iris XE
OS
Windows 11 Pro + Win11 Canary VM.
Computer type
Laptop
Manufacturer/Model
ASUS Zenbook 14
CPU
I9 13th gen i9-13900H 2.60 GHZ
Motherboard
Yep, Laptop has one.
Memory
16 GB soldered
Graphics Card(s)
Integrated Intel Iris XE
Sound Card
Realtek built in
Monitor(s) Displays
laptop OLED screen
Screen Resolution
2880x1800 touchscreen
Hard Drives
1 TB NVME SSD (only weakness is only one slot)
PSU
Internal + 65W thunderbolt USB4 charger
Case
Yep, got one
Cooling
Stella Artois (UK pint cans - 568 ml) - extra cost.
Keyboard
Built in UK keybd
Mouse
Bluetooth , wireless dongled, wired
Internet Speed
900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
Browser
Edge
Antivirus
Defender
Other Info
TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

Macrium Reflect Home V8
Office 365 Family (6 users each 1TB onedrive space)
Hyper-V (a vm runs almost as fast as my older laptop)
I have an nvme external drive and by backups were very slow from SS USB 3.1/2 ports. Even manual copying of files was at max 40 MB/s. I know I should get nearer 500-600 MB/s (real world speeds).

I tried all the usual advice - checking cables, updating drivers, checking bios up to date etc.

Googled around and surprising little advice (same advice from MS regurgitated by wannabe tech reporters - almost word for word)

I persisted google, and was on some forum, and the guy explained most usb cables just did not live up to claims, and most pcs default to usb2 speeds if anthing is not perfect. It recommended you ensure cables are marked 20Gbps (or 10 GBps) or SS (superspeed but my cables marked SS just did not cut the mustard!).
It seems ost usb c cables are really only designed to charge mobile phones rather than high speed transfer.

So I went on Amazon and found these cables


and decided to try them (great thing about Amazon is returning stuff is easy).

Bam - my copy / backup speeds went from 40 MB/S to around 600 MB/s.

So, it is obviously important to get quality cables.

I am sure this is well known to many users here, but I thought it was worth posting to others frustrated by slow external drive speeds as a possible solution.
Good advice. Thanks for the reminder - buy cheap, buy twice.
 

My Computer My Computer

At a glance

Windows 11 Professional 25H2Intel i5 8th Gen
OS
Windows 11 Professional 25H2
Computer type
Laptop
Manufacturer/Model
Thinkpad T480
CPU
Intel i5 8th Gen
Good advice. Thanks for the reminder - buy cheap, buy twice.
Yeah variant on my dear old Gran's saying "If you buy cheap, you pay dear".
 

My Computer My Computer

At a glance

Windows 11 Pro + Win11 Canary VM.I9 13th gen i9-13900H 2.60 GHZ16 GB solderedIntegrated Intel Iris XE
OS
Windows 11 Pro + Win11 Canary VM.
Computer type
Laptop
Manufacturer/Model
ASUS Zenbook 14
CPU
I9 13th gen i9-13900H 2.60 GHZ
Motherboard
Yep, Laptop has one.
Memory
16 GB soldered
Graphics Card(s)
Integrated Intel Iris XE
Sound Card
Realtek built in
Monitor(s) Displays
laptop OLED screen
Screen Resolution
2880x1800 touchscreen
Hard Drives
1 TB NVME SSD (only weakness is only one slot)
PSU
Internal + 65W thunderbolt USB4 charger
Case
Yep, got one
Cooling
Stella Artois (UK pint cans - 568 ml) - extra cost.
Keyboard
Built in UK keybd
Mouse
Bluetooth , wireless dongled, wired
Internet Speed
900 mbs (ethernet), wifi 6 typical 350-450 mb/s both up and down
Browser
Edge
Antivirus
Defender
Other Info
TPM 2.0, 2xUSB4 thunderbolt, 1xUsb3 (usb a), 1xUsb-c, hdmi out, 3.5 mm audio out/in combo, ASUS backlit trackpad (inc. switchable number pad)

Macrium Reflect Home V8
Office 365 Family (6 users each 1TB onedrive space)
Hyper-V (a vm runs almost as fast as my older laptop)
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