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Buffalo Technology > 
Item#: N82E16822165532

BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

  • USB 2.0 | eSATA | FW400 | FW800
  • Fanless Design
  • Easy Scheduled PC & MAC Backup
  • 1 Year Warranty
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Learn more about the Buffalo Technology HD-GD2.0U3

Model

Brand
BUFFALO
Series
DriveStation DDR
Model
HD-GD2.0U3

Performance

Color
Black
Interface
USB 3.0
Capacity
2TB
Cache
1GB DDR3 RAM CACHE

Physical Spec

Dimensions
8" x 5" x 1.8"
Weight
2.2 lbs.

Features

Features
Buffalo's DriveStation DDR is an easy to use, high performance USB 3.0 desktop hard drive that
offers ultra fast transfer speeds, comparable to SSD. Combining the high capacity of an HDD with 1
GB of DRAM cache, DriveStation DDR provides SSD-like performance. With blazing fast transfer
speeds up to 408 MB/s, it is up to 2.3x faster than USB 3.0 and 10x faster than USB 2.0. Perfect for
any PC or Mac, it's backward compatible with USB 2.0, and its unique chassis design can stand
upright or lay flat for placement just about anywhere. It ships complete with Buffalo Tools, a
feature-rich software suite designed to enhance computer performance and the day-to-day digital life
of Windows PC consumers; boost performance, conserve energy and battery consumption and
perform PC backups. DriveStation DDR is the perfect solution for easily expanding storage or
backing up your computer with ultra fast file transfers.

Packaging

Package Contents
DriveStation DDR

USB 3.0 Cable

AC Adapter

Quick Setup Guide

Warranty Statement

Quick Info

Warranty

  • Limited Warranty period (parts): 1 year
  • Limited Warranty period (labor): 1 year


Customer Reviews of the Buffalo Technology HD-GD2.0U3

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Showing 5 of 5 reviews - Clear Filters

  • michael k.
  • 2/25/2014 4:44:10 PM
  • Tech Level: Somewhat High
  • Ownership: 1 month to 1 year
  • Verified Owner

5 out of 5 eggsGood gracious this thing is fast

This review is from: BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

Pros: I purchased this as a drive that i could pull games off of quickly and man has it delivered!

Cons: the 2 tb drive is a 5400rpm segate hdd. it is a good internal HDD but i ran out of space rather quickly. buffalo uses 5400 rpm drives that max out at 3tb.

Other Thoughts: I ended up swapping the 2tb drive inside the case and replacing it with a 4tb wd black 7200 rpm drive. i am now achieving 440 READ and 350 WRITES! Amazing in my book.

Did you find this review helpful? Yes No

5 out of 5 eggsNeed external storage? Consider this

This review is from: BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

Pros: In a few words -- large capacity, fast, solid construction, and reasonable cost.
Plug it in and you're ready to go.
If it fits your needs, you should put it on your short list.

Cons: Due to my physical setup, I would like a longer USB3 connection cable.
Stands up so easily knocked over but don't see why you can't lay it down.

Other Thoughts: Comparison of the HD-GD2.OU3 to a couple other devices I have shows (I won't bore you with all the numbers) it is
- a factor of 2 times faster (both sequential and random read/writes) USB3 Corsair flash drive (thumb drive)
- some times faster and other times slower (on order of 50-75%) compared in an internal M4CT128 SSD using USB3 connection.
Bottom line --- vVERY good performance.

Did you find this review helpful? Yes No

5 out of 5 eggsReally fast drive, ideal for a portable, performance data store

This review is from: BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

Pros: Fastest drive in the fleet, nice look with subdued LEDs, lightweight plastic case dissipates heat, silent (no fans), stellar Random read/write speeds

Cons: Minor cons: Quite bulky with space for a fan but no benefit of one, plastic case seems more equipped for sitting on a desktop than for durability/portability, black “satin” finish shows fingerprints pretty easy

Other Thoughts: I’ll start off by saying that my only previous experience with Buffalo has been their value-priced routers, which were pretty reliable and lasted a good, long time. As mentioned in the title and the Pros section, this is a fast drive! In CrystalDiskMark, using the USB 3.0 interface, it scored 245-256-226-255 (SeqRead=245MB/s, SeqWrite=256MB/s, RandomRead 512KB=226MB/s, RandomWrite 512KB=255MB/s). That squashes my next fastest USB 3.0 drive (A Seagate 3TB Backup Plus) which scored 125-123-49-75, which in turn easily beat my fastest eSata 2TB external drive setup by 30%. But, those were all empty drive stats and, frankly, who uses an empty drive?! As part of this testing, I put data on the drive and re-tested. I started with 300GB and then bumped it up to a full terabyte (so well over half full) and, with both amounts, I had almost identical outcomes. So, with 1TB of the typical data I store, this brought the scores down a bit to 213-246-212-243. Down from super-awesome, however, is still awesome! Note: the Random read/write speeds are on par with the Sequential Read/Write speeds, which I haven’t ever seen! In addition to the straight-up speed increases on the sequential reads, this seems to be the real strength of this drive. Knowing this, I believe the best possible use for this drive would be a situation where the user needed a portable/external data store that performs similar an internal drive would be a good utilization scenario. Sure, it would do fine as a backup drive, but is quite pricy for that purpose, as you can get double the storage space for less money. That’s my take on it… In conclusion, if it were possible to dock it a half an egg, I would do so for the bulkiness, but as I cannot, I will give it the full five. I love new tech and especially love it when it does what it says it will do!

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4 out of 5 eggsGreat product

This review is from: BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

Pros: Lighting fast, great memory, easy to use, great setup

Cons: Nothing really!

Other Thoughts: You need speed?? Get this drive....
I just want to make something clear right now -- this drive reads and writes incredibly fast, IF you use it correctly. That means you need to have it connected to a USB3 port, and you need to keep the caching feature in the software on. As long as you keep those requirements in mind - this drive is amazing.

1 out of 1 people found this review helpful. Did you? Yes No

4 out of 5 eggsFast and quiet drive, cache may be of limited value

This review is from: BUFFALO DriveStation DDR 2 TB USB 3.0 Hard Drive with DDR3 MegaCache Accelerator - HD-GD2.0U3

Pros: Installation was easy. Like any modern USB drive, I plugged it in and it just worked. The computer recognized it as a 1.81 TB NTFS disk (2,000,298,872,576 bytes, or a hair over 2 TB using the drive manufacturers' power-of-ten definition of GB and TB).

Newegg states a 1 year warranty but the printed documentation says it's 3 years, which is good.

It is very quiet at idle or in use. Compared to my desktop it's essentially inaudible.

I exercised this drive over five days including a full disk test and truecrypt encryption (26 hours each). During this time there were no problems and the drive operated reliably with consistent performance.

Over USB 2.0 (yes, it's time for an upgrade) HD Tune reported 20.3 MB/s average throughput and 12.9 ms access.

Unexpectedly, I found the performance best with files larger than the stated 1 GB cache, with one exception:

10 GB file -- write 21.2 MB/s, read 24.2 MB/s.
1.25 GB file -- write 18.4 MB/s, read 20.2 MB/s (in this case the 1 GB cache should have helped dramatically).
Here is where it gets interesting:
0.5 GB file -- write 16.5 MB/s, read 46.5 MB/s (no disk activity indicated), second read 17.7 MB/s, third read 17.9 MB/s

The result I observed with the 0.5 GB file, where the first read after a write was very fast with no disk activity, and subsequent reads were normal speed with disk activity, was completely repeatable.

All performance measurements were made prior to TrueCrypt encryption.

Cons: I only observed the cache in obvious use in one scenario, when reading back a file smaller than 1 GB immediately after writing it, and only the first time this file was read. That's unexpected and it's difficult to understand why that would be the case. I can understand not caching the writes to preserve data integrity in case of power loss, but discarding the cache contents after a read makes no sense to me.

The plastic case feels thin and a little cheap. It's fine for stationary use but I'd think twice about hauling it around without some kind of a protective case.

Other Thoughts: Like many external drives these days, there is no power switch. It will spin up when the computer wakes up and spin down when the computer hibernates or powers off.

There is no fan and the plastic case gets a little warm to the touch. I measured 33 degrees C on the case exterior with the drive idling and 38 degrees C with the drive in use.

Newegg lists this as “USB 2.0 | eSATA | FW400 | FW800” which is incorrect. There's a single USB 3.0 connector (backward compatible to 2.0 of course).

This drive was a solid performer but currently it's 30% more expensive than other models that lack the 1 GB cache. I would be a little disappointed to pay that premium and not see more benefit from the cache.

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Ultrabooks > 
All External Hard Drives > 
Buffalo Technology > 
Item#: N82E16822165532
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