TimeNIC — PCIe I226 NIC with SMA Timing Ports and TCXO

TimeNIC — PCIe I226 NIC with SMA Timing Ports and TCXO

$225.00
Sale price  $225.00 Regular price 
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TimeNIC — PCIe I226 NIC with SMA Timing Ports and TCXO

TimeNIC — PCIe I226 NIC with SMA Timing Ports and TCXO

$225.00
Sale price  $225.00 Regular price 

TimeNIC — PCIe I226 NIC with SMA Timing Ports and TCXO

The TimeNIC is a small form-factor PCIe NIC designed to bring precision timing and advanced network functionality to any system with a PCIe slot. Built around the Intel I226 Ethernet controller, it integrates front-panel SMA connectors for 1PPS input and output, a high-stability TCXO, and full support for PTM (Precision Time Measurement) over PCIe — making it one of the most capable and affordable precision timing NICs available.

If you're familiar with the TimeHAT, the TimeNIC is its PCIe sibling — the same core I226 timing design, now in a standard PCIe card for desktops, servers, and embedded systems.

No batteries included or required. Powered entirely via the PCIe slot.

GitHub: https://github.com/Time-Appliances-Project/TimeNIC


What's in the Box

  • TimeNIC PCIe card
  • PCIe full-height bracket, installed with 2x M2.5×6 screws and 2x M2.5 nuts

Key Features

SMA Ports for 1PPS Input and Output

The only I226 NIC on the market with easy front-panel SMA connectors for SDP0 (1PPS output) and SDP1 (1PPS input). Use them to:

  • Validate PTP and PTM performance
  • Inject a 1PPS reference from GPS or an atomic clock and distribute time over PTP
  • Measure precise time intervals with external equipment

TCXO — High-Stability Oscillator

The only I226 NIC — and likely the most affordable PTP NIC — on the market with a Temperature-Compensated Crystal Oscillator (TCXO) backing the chipset. This delivers low-jitter timing distribution and stable frequency across temperature variations. The TCXO is a passive crystal oscillator component — it contains no battery.

TCXO used: ECS-TXO53-S3-33-250-BN-TR datasheet

PTM — Precision Time Measurement over PCIe

The biggest capability the TimeNIC has over the TimeHAT: PTM (Precision Time Measurement). PTM is essentially PTP over PCIe, transferring nanosecond-accurate time from the NIC directly to the CPU and userland code — without needing a network packet.

TimeHAT Relationship

The TimeNIC shares its core design with the TimeHAT — both are I226-based precision timing platforms. Most TimeHAT software documentation applies here. The main difference is the kernel patch process for fixing the 1PPS input rising-edge behavior, which is documented on the TimeNIC GitHub repo.

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