PCIe Grandmaster Clock
Open Timecard
Mini 3.0
The same multi-band GNSS, DOCXO holdover and full PTP profile stack as our Open Time Appliance Mini — re-engineered as a PCIe card. Turn an existing server into a grandmaster clock. Host-powered, no extra rack unit, no separate appliance in the signal chain.
Everything runs on time.
Imprecise time breaks everything.
Trade fills, 5G handovers, substation trips, frame-accurate broadcast — all decided in nanoseconds.
One card. Every network locked. No rack unit added.
One card.
Every standard.
Every Profile. One Card.
PTP Default, Enterprise, Power (C37.238, IEC 61850-9-3), Telecom (G.8275.1/.2, G.8265.1), Broadcast (SMPTE 2059-2, AES67, IEEE 802.1AS) — plus NTP, PPS and frequency distribution. No appliance, no licence fees.
Up to 5 Nanoseconds to UTC
Multi-band L1/L2/L5 GNSS with up to 5ns absolute accuracy. Integrated OCXO holds 1.5µs for 8 hours after GNSS loss — upgradeable to 24 hours with DOCXO.
TimeBeat Jitter Attenuation
Real-time filtering of network noise, asymmetric path delay and oscillator phase noise — the same engine that hardens our flagship appliances now sits on a single card. Delivers sub-nanosecond residual phase noise to every downstream consumer.
≤5ns / UTC
Absolute Accuracy
1.5µs / 24hr
DOCXO Holdover · GNSS-denied
L1 / L2 / L5
Multi-band GNSS · 5 constellations
OSNMA
Authenticated Galileo
Applications
Built for
Real-World Timing.
5G & Telecom
Serve G.8275.1 and G.8275.2 directly from your DU/CU host. Phase locked through GNSS disruption with 1.5µs / 24h DOCXO holdover. Anti-jam, OSNMA-authenticated GNSS protects exposed cell sites from spoofing.
Finance & HFT
Drop into a colo trading server. MiFID II RTS 25 / CAT / FINRA-grade timestamps to UTC at ≤5 ns. Sync Insight retains 12+ months of high-resolution clock telemetry — auditor-ready evidence packs on demand.
Broadcast & ST 2110
Frame-accurate timing for ST 2110, AES67/RAVENNA and IEEE 802.1AS AVB workflows. Slots into encoders, IP gateways and production switchers — no separate timing chassis in the rack, no second cable run.
Energy, Grid & Defence
IEEE C37.238-2011/2017 and IEC 61850-9-3 / IEC 62439-3 for substations, PMUs and SCADA. OSNMA-authenticated GNSS and DOCXO holdover for critical infrastructure where signal denial is a real threat - not a what-if.
Same Engine. Different Form Factor.
GNSS-disciplined. DOCXO-resilient.
Open Timecard Mini 3.0 carries the same GNSS receiver, oscillator options and PTP/NTP stack as the Open Time Appliance Mini — minus the battery, plus the PCIe slot. The DOCXO is continuously disciplined against five constellations across L1, L2 and L5. When GNSS drops out, it holds 1.5µs for 24 hours. Parts-per-trillion stability, sub-nano second tuning, host-powered.
±4ns
Time Pulse Jitter
0.1ppb
Short-Term Stability
±1.5μs/24hrs
DOCXO Holdover capability
Find your precision
One platform. Three editions.
All three editions share the same Mini 3.0 baseboard, software stack, and full protocol profile support. The decision comes down to accuracy, oscillator performance, and holdover requirements.
Precision Timing
From £799.95
≤5ns to UTC · GPS+GAL+GLO+BDS+QZSS L1/L2/L5 · OCXO 1.5µs / 8h standard · DOCXO 1.5µs / 24h upgrade · Galileo OSNMA · 10MHz + dual programmable frequency outputs
Get Yours→
Precision Timing Lite
From £285.95
≤10ns to UTC · GPS+GAL+BDS L1/L2/L5 · no OCXO holdover · every PTP/NTP profile included · ideal for hot-standby pairs
Get Yours →
Essential
From £75.95
30ns to UTC · L1/L5 dual-band GNSS · every PTP and NTP profile included · the cheapest way into the Mini 3.0 platform
Get Yours →Choosing Your Form Factor
PCIe card. Or Mini box?
The Open Timecard Mini 3.0 and the Open Time Appliance Mini ship the same multi-band GNSS, the same DOCXO, the same software stack and the same PTP profile coverage. The difference is where the time lives — inside your server, or as a standalone box. Pick the form factor that matches the deployment.
| Open Timecard Mini 3.0 | Open Time Appliance Mini | |
|---|---|---|
| Form factor | Half- or full-height PCIe | 144×82×44 mm box |
| GNSS receiver | L1/L2/L5 multi-band, 5 constellations | Identical |
| DOCXO holdover | 1.5 µs / 24 h | Identical |
| PTP / NTP profile support | Every major profile | Identical |
| Power | Host-powered via PCIe | DC barrel jack + battery |
| Outage survival | Depends on host UPS | On-board battery pack |
| Density | 3 cards / 1 RU server | One per shelf or desk |
| Field portability | Server-resident | Carry-on portable |
| Best for | DU/CU hosts, trading servers, dense edge | Field test, OB trucks, portable reference |
Open Timecard Mini 3.0
Precision timing
starts here.
From £225. Three editions. One baseboard. Every protocol profile, every standard, every constellation — no licence fees, no upsells, no surprises. Configure yours in two minutes.
