Our take
HB-IMCR is a specialized front-access hub for a defined iMac Slim Unibody family. Sabrent lists three USB 3.0 ports and SD/microSD readers for 21-inch, 27-inch and 5K models released November 2012 or later. Its value depends first on the computer enclosure matching that fit statement; it should not be treated as a general USB hub for arbitrary laptops or desktops.
An owner of a 21-inch, 27-inch or 5K Slim Unibody iMac released November 2012 or later who wants front-access USB and card readers..
Do not choose it for another iMac enclosure, a MacBook or PC, a required host plug not confirmed from the current documentation, or a verified offer under B09N44WL4X without checking the model and fit.
Pros & cons
What could work for you, and what to consider before buying.
What works in its favor
- Three USB 3.0 ports and SD/microSD readers are listed by Sabrent.
- The compatible iMac size and generation range is stated explicitly.
- Front-side placement can make card and peripheral connections easier to reach.
What to weigh up
- Fit is restricted to the named Slim Unibody iMac generation and sizes.
- The saved page does not map the historical Amazon ASIN to the official model.
- The 5Gbps specification is an interface ceiling, not a measured transfer rate.
Specifications and exact model details
The key details
| Model covered | HB-IMCR |
|---|---|
| Host connector | Host connection and cable detail are not specified in the saved official-page text; fit is limited to named iMac models |
| USB 3.x data ports | Three USB 3.0 ports are listed, with lower compatibility ceilings also shown for USB 2.0 and USB 1.1 devices |
| Installation | Front-side integrated access for specified 21-inch, 27-inch and 5K Slim Unibody iMacs from November 2012 or later |
| Hub power | Separate hub power input is not established by the saved official page |
| Host charging | No USB-C PD input or host-charging function is listed in the official product description |
Performance figures are manufacturer claims. Source checked October 5, 2026. Regional models and included accessories can differ.
Full review: how the features affect your choice
What the features mean for you
Front access for a specific iMac family
Sabrent describes HB-IMCR as a three-port USB 3.0 hub with SD and microSD readers positioned for front-side access on compatible iMac Slim Unibody computers. This can help when the built-in computer connections are inconvenient to reach and a user frequently plugs in memory cards, flash storage or other USB peripherals. The computer-fit statement is central: the maker names 21-inch, 27-inch and 5K Slim Unibody models from November 2012 or later. Confirm the exact enclosure before ordering; do not infer compatibility from the brand name or screen size alone.
Check the model's supported computer carefully
HB-IMCR is a fit-specific accessory, not a generic desk hub. Sabrent's saved page identifies the named Slim Unibody generation, but the packet does not establish an adapter for later iMac designs, MacBooks or Windows computers. Look up the exact iMac generation and enclosure and compare it with the maker's stated fit range. If the computer was released before November 2012 or uses a different case style, the saved evidence does not support a match. A physical fit accessory can be useful when correct, but small design changes between computer generations matter.
Use USB speeds as compatibility limits
Sabrent lists a maximum of 5Gbps for USB 3.0, with lower listed limits for USB 2.0 and USB 1.1 devices. These are interface specifications, not measured copy speeds. A connected device and the computer must support the same USB mode, and other factors affect real transfers. The hub's three USB 3.0 ports do not each create an independent 5Gbps upstream path. If moving large video or photo files is a central task, confirm card and host compatibility and treat the published numbers as a ceiling rather than a benchmark.
Make use of the two reader formats
The official page lists both SD and microSD readers, which can reduce the need for a separate reader when transferring camera or device files at the iMac. The saved packet does not state card-capacity limits or whether both formats can be accessed simultaneously. Confirm the exact reader labels and card workflow in the product documentation if concurrent use matters. The two formats are useful facts about the product layout; they do not imply a specific UHS speed or a tested copy rate. Use the source manual for any card-specific requirement not included in the saved feature summary.
Do not assume charging or networking functions
Sabrent describes USB expansion and card reading, not HDMI, Ethernet or a USB-C Power Delivery input. This profile therefore does not present HB-IMCR as a docking station or laptop charger. The saved page text also does not establish a separate hub power supply or an exact upstream connector description, so check the current manual and physical product if those details affect setup. Buyers choosing it for a supported iMac should focus on the documented front access, USB data ports and card formats rather than adding capabilities that the source page does not claim.
Search by HB-IMCR and verify the offer
Sabrent's official legacy page identifies HB-IMCR, while historical ASIN B09N44WL4X could not be read or mapped to an exact current offer. Search by model and check the selected result's iMac compatibility text, port count and card-reader labels. Confirm that the listing presents the correct product rather than another Sabrent hub. This review is based on the manufacturer's specifications, not a hands-on installation, user-review summary, current inventory or price. The model-specific fit is the main buying filter and should be confirmed before relying on the accessory.
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Before you buy
Which computers does Sabrent list for HB-IMCR?
21-inch, 27-inch and 5K iMac Slim Unibody models released November 2012 or later.
Does it include both SD and microSD readers?
Yes, Sabrent lists both formats.
Does the 5Gbps USB 3.0 claim equal tested file-transfer speed?
No. It is an interface ceiling, not a benchmark.
Is B09N44WL4X confirmed as the current exact HB-IMCR offer?
No. The historical ASIN is not mapped to the official product page.
Where can I check the current price?
Use the Amazon link for current offers. Check the exact model, seller, product condition, delivery, and return terms. This page does not display a live price or confirm stock.
Sources and review basis
Sources & review basis
We use the linked product documentation for the features above. Our suitability notes and buying advice are editorial judgments based on those features, not measured performance results.
- Sabrent official legacy HB-IMCR product page for port configuration and supported iMac fit ↗ — checked October 5, 2026.
- Official HB-IMCR model, three-port USB 3.0, card-reader and iMac fit specifications ↗ — checked October 5, 2026.
- Historical Amazon ASIN; page was not readable for exact current offer mapping ↗Paid link · We may earn a commission. — checked October 5, 2026.
Is it the right fit?
Check the exact model and today’s offers on Amazon.