USB 3.0 vs. NAS

I have a home network with a 2Wire 3800HGV-B router.  My house is cat-5 wired.
My primary laptop has a Realtek PCIe GBE Family Controller and 7200rpm Hitachi drives running RAID-0.

I need high throughput for file copying (real-time backups and 20 - 400GB file copies)

Am loving USB 3.0 on my laptop and trying to decide whether to buy a USB 3.0 hub and another USB 3.0 4TB drive, or whether to enter the world of NAS.

What would I need to buy and what would be the pricetag to get USB 3.0-like throughput using NAS?
SAbboushiAsked:
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medveddConnect With a Mentor Commented:
You'll never get USB 3.0-like throughput using NAS with gigabit ethernet - theoretical ceiling of gigabit networks is 125 MB/s, and in real life it's much lower.
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Aaron TomoskySD-WAN SimplifiedCommented:
Most nas will not get anything near USB 3 speeds even on a gigabit network. Is it gigabit? How many computers need to see the nas? How much storage would you like?
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SAbboushiAuthor Commented:
I don't know if it is Gigabit - what other info is needed to determine that?

My laptop would be primary user of NAS, but occassionally 3 more pcs.
4TB to start.
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Aaron TomoskySD-WAN SimplifiedCommented:
if the computers are wired, you can open network connections in windows and it will show speed:1.0Gbps

if you are wireless, are you g or n?
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SAbboushiAuthor Commented:
My wired LAN connection speed shows 100Mbps; where can I see what is preventing Gbps speed?

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Aaron TomoskyConnect With a Mentor SD-WAN SimplifiedCommented:
to have gigabit, the adapter in the computer needs to support it, and the switch/router it plugs into has to support it.
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SAbboushiAuthor Commented:
Thanks - I just checked and the router only does 100Mbps.

Thanks for everyone's help--
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Aaron TomoskySD-WAN SimplifiedCommented:
So on a 100mbit network any fileshares will max at about 11MBps (megabytes). So the nas doesn't matter. Usb2 is about 25MBps, usb3 is about 70MBps.
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SAbboushiAuthor Commented:
Thanks - I appreciate you help.
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