SA260324R-0371
① SA Source
- Source: 開啟完整 SA 文章
- Section:
Mid-board Optics – Nvidia’s War on Pluggables - Line hint:
459
Context Before
More is available to our institutional subscribers sales@semianalysis.com.
Mid-board Optics – Nvidia’s War on Pluggables
Evidence
Interestingly, the Kyber rack exhibited at the GTC 2026 show floor is missing OSFP cages for scale-out networking. Instead, we only see 4x MPO ports from each compute tray. This design has effectively taken key pluggable transceiver items (driver, TIA, etc.) other than the DSP and put them on a Midboard Optical Module (MBOM) which then connects to the PCB via a land grid array (LGA) socket. Two CX-9s share one MBOM, which then connects to the MPO faceplate via a short fiber connection. The MBOM provides two MPO ports at 2x800G each for 1.6T of total connectivity.
Context After
4 MPO ports on the left, rather than OSFP cages. Source: Nvidia, SemiAnalysis
② Atomic Claim
The Kyber compute tray displayed at GTC 2026 shows four MPO ports instead of scale-out OSFP cages.
- Epistemic Mode:
ASSERTED - Mapping Status:
COMPLETE
③ Semantic Frame
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/Compute Tray",
"label": "compute tray"
},
"role": "component"
},
{
"node": {
"id": "04_knowledge_base/MPO",
"label": "MPO"
},
"role": "port"
}
],
"qualifiers": {
"condition_text": null,
"numeric_mentions": [
"4"
],
"temporal_mentions": []
},
"relation_type": "COMPUTE_TRAY_MPO_PORT_COUNT"
}④ Canonical Entity Mapping
| Role | Surface Label | Canonical Target |
|---|---|---|
| component | compute tray | 04_knowledge_base/Compute Tray |
| port | MPO | MPO |
⑤ V2 Draft（需要修正時直接編輯）
Inline repair
只編輯以下三個 Draft 區塊。完成後將
review_action設為REQUEST_REPAIR，再手動執行 Repair Preview。
執行腳本前，Draft 不會寫入 Claim Store 或 Graph。
V2 Atomic Claim Draft
The Kyber compute tray displayed at GTC 2026 shows four MPO ports instead of scale-out OSFP cages.
V2 Semantic Frame Draft
{
"frame_type": "NARY_RELATION",
"participants": [
{
"node": {
"id": "04_knowledge_base/Compute Tray",
"label": "compute tray"
},
"role": "component"
},
{
"node": {
"id": "04_knowledge_base/MPO",
"label": "MPO"
},
"role": "port"
}
],
"qualifiers": {
"condition_text": null,
"numeric_mentions": [
"4"
],
"temporal_mentions": []
},
"relation_type": "COMPUTE_TRAY_MPO_PORT_COUNT"
}V2 Revision Metadata Draft
{
"epistemic_mode": "ASSERTED",
"mapping_status": "COMPLETE"
}⑥ Human Review
請在 Properties 逐項確認：
- 原文 → Atomic Claim 是否忠實
- Atomic Claim → Semantic Frame 是否忠實
- Canonical Entity mapping 是否正確
- Epistemic mode 是否保留原文語氣
- 最後選擇
review_action
Review state
Markdown 內文不是正式 approval。只有 Apply bridge 寫入的 Decision Ledger event 才是正式決策。