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The Gigabyte BRIX GB-BXBT-1900 is a 0.69-liter barebone mini PC built around Intel’s quad-core Celeron J1900. It is not a complete computer: you must add DDR3L SO-DIMM memory, a 2.5-inch SATA drive and an operating system, and a wireless card may or may not be included depending on the market. Its HDMI-and-VGA dual-display output, Gigabit Ethernet and tiny VESA-mountable chassis remain useful, but its 8 GB memory ceiling, SATA 2 storage interface and legacy platform make it a used-market project rather than a current general-purpose recommendation.
What the GB-BXBT-1900 is
The GB-BXBT-1900 is the J1900 version of Gigabyte’s Bay Trail BRIX family. Gigabyte specifies an Intel Celeron J1900 with four cores and a maximum clock speed of 2.42 GHz. Do not confuse it with the GB-BXBT-2807, which uses the different Celeron N2807 processor.
The enclosure measures 56.1 × 107.6 × 114.4 mm (2.21 × 4.24 × 4.5 inches) and has a listed volume of 0.69 L. A VESA bracket supports 75 × 75 mm and 100 × 100 mm mounting patterns, so the computer can be attached behind a compatible monitor or display.
It is a barebone, not a ready-to-use PC
Gigabyte’s barebone designation matters when evaluating a listing. The box does not include an operating system, and the memory and 2.5-inch drive are separately installed components. Wireless hardware can also vary by local distribution.
#1 Best Overall
- High Performance Ultra Compact PC, AMD RYZEN R7-4800U 2.0G - 4.1G Turbo / Bluetooth: BT 5.2
- AMD Radeon Graphics 1750Mhz / 2.5G LAN (Realtek 8125) / Intel WiFi6 AX200
- No Memory, Slot 2 x 260Pin SO-DIMM DDR4 3200, Max memory support 64GB
- No Hard Drive, Supports 2.5" HDD/SSD, 7.0/9.5 mm thick (1 x 6 Gbps SATA 3) PCIe Gen3 X4 /SATA , 1 X M.2 slot (2280_storage)
- Warranty 3 years
Parts you need to supply
- Memory: one compatible 1.35 V DDR3L SO-DIMM, rated at 1333 MHz.
- Storage: one 2.5-inch, 7.0 mm or 9.5 mm SATA drive, either an HDD or SSD.
- Operating system: install your own OS; the old datasheet lists Windows 7 64-bit, Windows 8, Windows 8.1 and Windows 10 64-bit, but that historical list does not establish current security support or suitability.
- Wireless, if absent: verify whether the particular unit includes its Wi-Fi/Bluetooth module before buying.
What RAM does the Gigabyte Brix GB-BXBT-1900 use?
There is a single SO-DIMM socket. Gigabyte rates it for 1.35 V DDR3L at 1333 MHz and a maximum of 8 GB; Kingston’s model-specific entry likewise reports one socket and an 8 GB maximum. A DDR3L module above 8 GB is outside the stated specification, and ordinary desktop DIMMs will not fit.
Because there is only one slot, upgrading means replacing the installed module rather than adding a second stick. For a used unit, confirm both the module’s DDR3L/1.35 V rating and the actual capacity installed.
Does the GB-BXBT-1900 include a hard drive?
No. The barebone provides a bay and connection for one 2.5-inch drive, but the drive is a separate purchase and installation. Gigabyte specifies a SATA 2 link at 3 Gbps. That makes a 2.5-inch SATA SSD a sensible responsiveness upgrade over an old hard disk, but the system cannot use an M.2 or NVMe drive and will not expose the performance of modern storage interfaces.
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Rank #2
- high performance ultra compact pc (34.7 x 119.5 x 119.5 mm)
- features intel core i3-10110u processors
- dual so-dimm ddr4 supports up to 2666mhz, 64gb
- support 1x m.2 ssd (2280)
- dual hdmi supports resolutions up to 4k/60p
Displays, ports and networking
The integrated Intel HD Graphics output is basic by current standards but flexible for office, signage and similar roles.
| Connection or feature | Specification |
|---|---|
| HDMI | HDMI 1.4a; up to 1920 × 1080 at 60 Hz |
| VGA | Up to 2048 × 1152 at 60 Hz |
| Dual displays | Gigabyte advertises simultaneous VGA and HDMI operation |
| USB | One front USB 3.0; two rear USB 2.0 |
| Wired network | Gigabit Ethernet using a Realtek RTL8111G controller |
| Audio | Combined audio-out/microphone-in jack |
| Wireless | Datasheet names an AW-NB159H module; inclusion varies by distribution. The feature description lists 802.11b/g/n and Bluetooth 4.0. |
Therefore, the answer to “Can the GB-BXBT-1900 run two monitors?” is yes, within its advertised limits: one display through HDMI and another through VGA. It is not a modern high-refresh or 4K multi-monitor platform.
Physical port layout
- Front: USB 3.0.
- Rear: HDMI, two USB 2.0 ports, RJ45 Ethernet, DC input and Kensington lock slot.
- Side: VGA and the combined audio-out/mic-in jack.
Power and installation checks
The datasheet specifies a 12 V, 2.5 A output for the supplied adapter. The manual warns that using an adapter other than the included GB-BXBT unit can create safety or compliance hazards. With a second-hand computer, check that the correct adapter is present rather than assuming a visually similar replacement is safe; voltage and current alone do not prove connector or polarity compatibility.
- Confirm the listing is specifically GB-BXBT-1900, not the N2807-based GB-BXBT-2807.
- Open the unit or obtain a clear inventory photo showing the DDR3L SO-DIMM and its capacity.
- Verify that the 2.5-inch drive caddy, SATA cable and mounting screws are present if the seller claims the system is complete.
- Check whether the wireless module and its antenna leads are installed.
- Match the included power adapter to the GB-BXBT model and inspect the plug, cable and casing for damage.
- Ask for a power-on test showing video output, USB operation, Ethernet and storage detection.
- Budget for an operating-system installation and allow for driver availability appropriate to the OS you intend to use; the old Windows list is not a promise of present-day support.
Performance expectations in 2026
The J1900 was an entry-level Bay Trail processor, and the platform’s fixed limits are more important than its four-core label: one memory slot capped at 8 GB, SATA 2 storage and older integrated graphics. It can suit lightweight desktop work, thin-client duties, simple digital signage, basic file or network services and other modest workloads when software requirements are compatible.
Rank #3
- Dimension: 48.9 mm x 107.6 mm x 114.4 mm (1.93" x 4.24" x 4.5")
- CPU: 4th generation Intel Core i3-4010U 1.7GHz
- Memory Support: 2 x SO-DIMM DDR3L slots (DDR3 1.35V) 1333/1600 MHz Max. 16GB
- Graphics: Intel HD 4400 graphics
- Expansion Slots: 1 x mSATA slot, 1 x Half-size mini-PCIe slot occupied by the WiFi+BT card
It is a poor fit for demanding modern multitasking, contemporary 3D games, heavy media production, high-resolution streaming requirements, virtualization with several guests or applications that require current CPU instruction sets and graphics drivers. No current operating-system support or present-day performance testing is established here, so check the requirements of the exact software and distribution before committing.
Independent reader supportYour contribution helps us test, update, and keep practical guides available for everyone.What the 2014 review got right—and what it cannot prove now
Ganesh T S’s AnandTech review, published October 24, 2014, judged the machine in the sub-$300 market of that period. Its conclusion praised the balance of price, power, size and thermal/acoustic design and described the GB-BXBT-1900 as a successful Bay Trail alternative. Those observations belong to that review date, its test configuration and the market available then.
They do not establish a current used price, stock level, regional availability, reliability rate or security-support status. Gigabyte now marks the model as legacy. Treat the AnandTech article as historical context, not as a current buying recommendation.
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It makes sense when
- You need an exceptionally small, VESA-mountable computer for light workloads.
- You already have, or can cheaply source, the correct DDR3L module, 2.5-inch SATA drive and adapter.
- HDMI plus VGA, Gigabit Ethernet and legacy USB connectivity match your equipment.
- You are comfortable validating an older platform and installing software yourself.
Look elsewhere when
- You need more than 8 GB of RAM, NVMe storage, USB-C, modern display outputs or current wireless standards.
- You require a vendor-confirmed, actively supported operating system.
- The used unit is missing its adapter, storage hardware or wireless module and the total restoration cost approaches that of a complete newer mini PC.
- You expect modern gaming, heavy content creation or substantial virtualization performance.
Because current inventory, condition and pricing were not verified, calculate the complete cost—barebone, memory, drive, adapter and any missing wireless hardware—before comparing it with a ready-to-use alternative.
Quick Recap
Product prices and availability are accurate as of the date/time indicated and are subject to change. Any price and availability information displayed on Amazon at the time of purchase will apply.
