The used Blackmagic Design Mini Converter Sync Generator listed by OxGears is a Grade A, compact metal-chassis reference generator with 6x BNC REF OUT, DIP switch and USB control, and +12V power, weighing 0.2 kg. It is worth buying if your video chain needs a house sync reference in one of the listed formats (720p/50, 720p/59.94, 1080i/50, 1080i/59.94, 1080p/23.98, 1080p/24) and you can confirm all six outputs work before paying. It is not worth buying if you need networked control, a status display, or reference formats outside that set. For buyers assembling racks for live events, the same planning logic behind a festival PA system applies to video reference, so confirm every downstream device locks before the show.
1. The listing shows 6x BNC REF OUT on a 0.2 kg chassis, so the unit's value is in fan-out to multiple devices, not in features. 2. Control is DIP switches plus USB only, with network and display marked N/A, so configuration is manual and local. 3. Grade A is a condition statement, not a test report; serial history, service records and operating hours are not disclosed. 4. Quantity available is on request, so confirm stock and the exact included accessories before committing to a purchase order.
The listing describes a Blackmagic Design Mini Converter Sync Generator in the video-switchers category, graded A. The published specs are narrow and specific: inputs and outputs are 6x BNC REF OUT; supported resolutions are 720p/50, 720p/59.94, 1080i/50, 1080i/59.94, 1080p/23.98 and 1080p/24; control is via DIP switches and USB; network is N/A; display is N/A; power is +12V; rack units are N/A; the chassis is compact metal with exact millimetres not readable; weight is 0.2 kg; quantity available is on request.
Two things follow from that combination that a generic product page will not spell out. First, six REF OUT ports on a 0.2 kg box means the unit is designed to sit close to the rack and distribute one reference to several downstream devices — switchers, converters, record decks — rather than to be a single-output dongle. That changes how you plan cabling and BNC patch length in a flight case or a fixed rack. Second, the absence of network and display fields is not a missing data point; it is a design statement. There is no IP-based clock management and no front-panel readout, so whoever configures the unit must read DIP switch positions and confirm state through downstream gear.
For a buyer scanning used video switchers for a reference source, this is a small, low-weight item that ships cheaply and slots into an existing SDI workflow. The full listing sits at used Blackmagic Design Mini Converter Sync Generator for sale.
The listed specs stop at the port count and the format table. They do not tell you the serial number, the unit's service history, whether it has been repaired, how many hours it has run, or what firmware state it is in. They do not state whether the +12V power supply is included, whether the original packaging is present, or what the DIP switches are currently set to. The exact chassis dimensions are marked as not readable, so you cannot confirm rack shelf fit from the listing alone.
These gaps matter because a sync generator is a reference device: if it drifts, drops a format, or has a dead BNC output, every downstream device in the chain inherits the fault. A Grade A cosmetic grade tells you the unit presents well; it does not tell you that all six REF OUT ports are live, that the DIP switches still latch cleanly, or that the USB control path is recognised by configuration software. None of those are disclosed.
Quantity available is on request, which also means the listing does not commit to a stock figure. If you are buying for a rental fleet or a multi-room integration, confirm how many units are actually on hand before you build a quote around this item.
Do not choose this unit if your venue or integration depends on networked clock distribution. Network is listed as N/A, so there is no IP management path, no remote monitoring, and no way to poll the device from a control room. If your workflow assumes devices are addressable on a network, this is the wrong product.
Do not choose it if operators need a front-panel status display. Display is listed as N/A, so format and lock state must be inferred from downstream equipment. In a busy OB truck or a live venue where a technician needs to glance at a rack and confirm reference health, that is a real operational constraint.
Do not choose it if your house reference format falls outside 720p/50, 720p/59.94, 1080i/50, 1080i/59.94, 1080p/23.98 or 1080p/24. The listed format set is the whole format set as published; anything else is Unknown / Not disclosed and should not be assumed.
Do not choose it if you cannot test BNC outputs on arrival. A six-output reference box with an unverified output is a liability in a rental fleet, where a single bad unit can take down a multi-camera shoot.
Six REF OUT ports buy you fan-out without a distribution amplifier, which simplifies a rack and removes a failure point. The trade-off is that all six outputs share one internal reference, so a fault in the unit propagates to every connected device at once. Buyers used to distributed clocking should weigh that concentration of risk.
DIP switch plus USB control keeps the unit simple and cheap to support, but it also means configuration is physical and local. In a fixed install that is fine; in a rental fleet that reconfigures per show, it means someone has to reach the unit and set switches correctly every time. There is no network fallback and no display confirmation. Teams building a full reference and switching chain can pair this generator with a used Matrox DSXLE4L card from the same video-switchers stock and test both together on arrival.
The 0.2 kg weight and compact metal chassis make shipping and case-packing easy, which matters for export buyers moving mixed pallets of second hand line array speakers and video gear together. The trade-off is that a light box in a shared case needs protection; the listing does not describe flight-case condition or packaging, so that risk is Unknown / Not disclosed.
Grade A helps on cosmetics and resale presentation, but it does not substitute for a functional check. Weigh the grade as a starting filter, not as evidence of output health. Because the generator feeds switchers, converters and record decks, it is worth browsing the used video switchers stock to plan the whole reference chain together.
Ask for availability and a quote through the OxGears contact page, and in the same message request the serial number, confirmation of whether the +12V power supply is included, the current DIP switch setting, and the firmware state if known. Ask specifically whether all six BNC REF OUT ports have been confirmed live and whether the USB control path has been checked.
Before paying, agree on how the unit will be tested on arrival: power it from a +12V supply, connect a downstream device that accepts one of the listed formats, and confirm lock on each REF OUT in turn. If the seller cannot confirm output health, treat the unit as untested and price your risk accordingly. Confirm the quantity on hand if you are buying for a fleet, and confirm what is in the box — unit only, or unit with PSU and packaging.
The listing states 720p/50, 720p/59.94, 1080i/50, 1080i/59.94, 1080p/23.98 and 1080p/24. No other formats are disclosed.
Six, listed as 6x BNC REF OUT. Buyers who also need capture or playback in the same rack can read our used Blackmagic Design DeckLink guide for condition notes that apply to Blackmagic gear generally.
Not stated on the listing. Power is listed as +12V; whether the PSU ships with the unit is Unknown / Not disclosed, so confirm before paying.
No. Network is listed as N/A. Control is via DIP switches and USB only.
Grade A, per the listing. Serial history, service records and operating hours are not disclosed. ## Sources
OxGears listing: Blackmagic Design Mini Converter Sync Generator — /products/blackmagic-design-mini-converter-sync-generator/
Manufacturer published specifications for Blackmagic Design Mini Converter Sync Generator — no verifiable URL supplied.
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