NewerTech miniStack - Disco duro externo, aluminio y negro
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- Descripción del producto: NewerTech ministack
- Profundidad: 19,7 cm
- Cables incluidos:, eSATA, FireWire, USB
- Tamaño de la unidad de almacenamiento: 8,89 cm (3.5 ")
- Supported Storage Drive interfaces: SATA
- Color: Aluminio, Negro
- Material: Aluminio, plástico
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Descripción del producto
Adaptador de energía externo: Si
Altura: 3,6 cm
Ancho: 19,7 cm
Cables incluidos: eSATA, FireWire, USB
Cantidad de puertos USB 3.0: 1
Cantidad de puertos eSATA: 1
Circuito integrado: JMicron 355
Color del producto: Aluminio, Negro
FireWire 800: Si
Indicadores LED: Si
Intervalo de temperatura operativa: 5 - 55 °C
Materiales: Aluminio, De plástico
Número de unidades de almacenamiento compatibles: 1
Profundidad: 19,7 cm
Supported storage drive interfaces: SATA
Tamaño de la unidad de almacenamiento: 8,89 cm (3.5")
Velocidad de transferencia de datos: 5 Gbit/s
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It seems that this is a known problem with the miniStack and USB3 - and this is discussed on the manufacturers website. They even now offer a "shielding kit" that they sell for $10 to "fix the problem". It installs internally inside the Mac Mini, requiring major surgery to install. But - it made no difference for me.
I tried switching from USB3 to Firewire 800, and that made some slight improvement.
But I can confirm that there is still terrible Bluetooth interference even after switching from USB3 to Firewire 800.
It still leaves the trackpad too unreliable for use - even at short range. Our Mini is under the desk, and the trackpad is on it. With the miniStack powered on (even if we are not transferring data!) the Bluetooth starts to drop out.
Turning off the miniStack immediately solves the problem, and there are no issues with any of our other external drives - so I can only conclude that the issue must be in the design of the miniStack. Our SeaGate GoFlex USB3 drive has not had any of the same interference issues.
I'm not sure what other things I might try other than relocating the miniStack away from being directly underneath the Mac Mini - which kind of defeats the whole "stack" point of the product.
This has been incredibly frustrating, and I feel I have no choice but to return this. *grrr*
The enclosure is well built, easy to open and install a SATA drive, comes with short cables (FW & USB3) and drive mounting screws. A built-in FW hub lets you daisy-chain multiple drives or other FW devices to the Mac mini.
• the enclosure is not exactly "whisper quiet" (as advertised). The fancy mag-lev fan emits a disturbing buzz/whine. It's not terribly objectionable, and is largely masked by the noise of the hard drive (when active). Fortunately, the fan shuts off when the drive spins down. The noisy fan is simply poor quality control on the part of the fan manufacturer. I called Newer's customer service to see if they could send me replacement fans - it's a easy two-screw swapout. They disavowed all knowledge of noisy units (despite the various complaints reported in reviews here and elsewhere) and indicated that replacement fans are not available. After living with the two units on my desk for a week, I decided the noise is not bad enough to go through the hassle of returning them for exchange (and no certainty of quieter replacements).
• I used the built-in Firewire hub to daisy-chain two miniStacks to my Mac mini. Using a disk throughput utility, I measured the Read and Write performance of each drive, and then swapped the position of the drives in the daisy chain and repeated the measurements. I found that the FW hub reduces the throughput to the second (downstream) drive by about 15%. I don't know if that's due to poor design of the FW hub in the miniStack or is inherent in Firewire repeater technology. To achieve best I/O performance, be sure to place your primary external drive first-in-line on the Firewire daisy chain. Some rainy day I may re-run the throughput measurements with the two drives connected via USB3.
• this product is intended specifically to stack with the Mac mini, and should appeal to those who value design and appearance (as well as performance). Alas, in this regard the miniStack is close (but no cigar). Dimensionally, the enclosure is a tad (1/4") taller than my Mac mini. And the brushed aluminum finish is similar, but not identical, to that of the Mac.
• another design nit: on the Mac mini, the pilot light is a discreet tiny white LED positioned on the front at the upper-right corner. On the miniStack, it's a big honkin' white LED at the lower-right corner. And it's much too bright. I applied a small piece of black electrical tape on the inside of the case covering the LED diffuser. This reduced the brightness of the LED to acceptable levels.
With a small amount of attention to detail, the miniStack could have been designed to match the Mac mini perfectly. (Jony Ive would never tolerate what Newer's industrial designer delivered). As it is, it's just 'OK', but it's certainly a better solution for adding external storage to a Mac mini than mass-market SATA enclosures.
I should have done my due diligence and read all the reviews. This is a known USB3 interference problem. NewerTech/OWC claims it is the defective shielding in the 2012 Mini. Apple says their computers meet all RF specs. No matter - don't bother to buy this if you want USB3 speeds. Since I am only using it as a backup I connected the devices with a Firewire 800 cable. All works fine in that configuration.