I-O DATA Out with HDPS-U Portable Hard-Drives

btarunr · Nov 28, 2008

I-O Data released its newest lineup of portable hard-drives under the HDPS-U series. The drives come in capacities of 160 GB, 250 GB, 320 GB and 500 GB in black and white shells. Connectivity includes USB 2.0 for transfer speeds of 43 MB/s, 39 MB/s (read/write).

The shell encloses a 2.5 inch hard drive which is protected from mechanical damage by a reinforced frame with rubberised corner grips. The unit weighs around 170g. The company will be shipping these drives by mid-December in Japan, with price tags of roughly US $110, $121, $166 and $221 depending on the capacities in the above order.

View at TechPowerUp Main Site

Mussels · Nov 29, 2008

i'd like to know how they reckon you can get 43MB/s, i've never seen a USB 2.0 device break past 30 (sustained)

btarunr · Nov 29, 2008

Mussels said:
i'd like to know how they reckon you can get 43MB/s, i've never seen a USB 2.0 device break past 30 (sustained)

Theoretical limit for USB 2.0 is 60 MB/s, so with a good-enough controller, 43 MB/s doesn't look a stretch.

Mussels · Nov 29, 2008

btarunr said:
Theoretical limit for USB 2.0 is 60 MB/s, so with a good-enough controller, 43 MB/s doesn't look a stretch.

thats bi-directional. 30MB/s each way, to my knowledge.

If a 1TB 3.5" drive can do 80MB/s on e-sata, yet over USB (with 4 cages i tested) it caps out at 2.9-30MB/s each time, i'd be inclined to think its USB holding it back and not the cages.

btarunr · Nov 29, 2008

Although the bandwidth for USB 2.0 isn't 60 MB/s in each direction , it's not fixed to 30 MB/s /direction a-la PCI-Express (250 MB/s /direction /lane). Within its 60 MB/s limit, it can even be 59 MB/s up, 1 MB/s dn theoretically. Since those tests were conducted as read-speed and write-speed, those speeds given out don't look fishy.

Mussels · Nov 29, 2008

btarunr said:
Although the bandwidth for USB 2.0 isn't 60 MB/s in each direction , it's not fixed to 30 MB/s /direction a-la PCI-Express (250 MB/s /direction /lane). Within its 60 MB/s limit, it can even be 59 MB/s up, 1 MB/s dn theoretically. Since those tests were conducted as read-speed and write-speed, those speeds given out don't look fishy.

ah, ok.

well, i'll wait til i see reviews before beleiving it.

Wile E · Nov 29, 2008

I don't believe it either. I've never seen a USB device sustain transfers over 32-35MB/s. They are probably quoting peak speeds

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Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
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Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.

System Name	RBMK-1000
Processor	AMD Ryzen 7 5700G
Motherboard	ASUS ROG Strix B450-E Gaming
Cooling	DeepCool Gammax L240 V2
Memory	2x 8GB G.Skill Sniper X
Video Card(s)	Palit GeForce RTX 2080 SUPER GameRock
Storage	Western Digital Black NVMe 512GB
Display(s)	BenQ 1440p 60 Hz 27-inch
Case	Corsair Carbide 100R
Audio Device(s)	ASUS SupremeFX S1220A
Power Supply	Cooler Master MWE Gold 650W
Mouse	ASUS ROG Strix Impact
Keyboard	Gamdias Hermes E2
Software	Windows 11 Pro

System Name	Rainbow Sparkles (Power efficient, <350W gaming load)
Processor	Ryzen R7 5800x3D (Undervolted, 4.45GHz all core)
Motherboard	Asus x570-F (BIOS Modded)
Cooling	Alphacool Apex UV - Alphacool Eisblock XPX Aurora + EK Quantum ARGB 3090 w/ active backplate
Memory	2x32GB DDR4 3600 Corsair Vengeance RGB @3866 C18-22-22-22-42 TRFC704 (1.4V Hynix MJR - SoC 1.15V)
Video Card(s)	Galax RTX 3090 SG 24GB: Underclocked to 1700Mhz 0.750v (375W down to 250W))
Storage	2TB WD SN850 NVME + 1TB Sasmsung 970 Pro NVME + 1TB Intel 6000P NVME USB 3.2
Display(s)	Phillips 32 32M1N5800A (4k144), LG 32" (4K60) \| Gigabyte G32QC (2k165) \| Phillips 328m6fjrmb (2K144)
Case	Fractal Design R6
Audio Device(s)	Logitech G560 \| Corsair Void pro RGB \|Blue Yeti mic
Power Supply	Fractal Ion+ 2 860W (Platinum) (This thing is God-tier. Silent and TINY)
Mouse	Logitech G Pro wireless + Steelseries Prisma XL
Keyboard	Razer Huntsman TE ( Sexy white keycaps)
VR HMD	Oculus Rift S + Quest 2
Software	Windows 11 pro x64 (Yes, it's genuinely a good OS) OpenRGB - ditch the branded bloatware!
Benchmark Scores	Nyooom.

System Name	RBMK-1000
Processor	AMD Ryzen 7 5700G
Motherboard	ASUS ROG Strix B450-E Gaming
Cooling	DeepCool Gammax L240 V2
Memory	2x 8GB G.Skill Sniper X
Video Card(s)	Palit GeForce RTX 2080 SUPER GameRock
Storage	Western Digital Black NVMe 512GB
Display(s)	BenQ 1440p 60 Hz 27-inch
Case	Corsair Carbide 100R
Audio Device(s)	ASUS SupremeFX S1220A
Power Supply	Cooler Master MWE Gold 650W
Mouse	ASUS ROG Strix Impact
Keyboard	Gamdias Hermes E2
Software	Windows 11 Pro

I-O DATA Out with HDPS-U Portable Hard-Drives

btarunr

Editor & Senior Moderator

Mussels

Freshwater Moderator

btarunr

Editor & Senior Moderator

Mussels

Freshwater Moderator

btarunr

Editor & Senior Moderator

Mussels

Freshwater Moderator

Wile E

Power User

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