Goldman Sachs Maintains Buy Rating on King Slide: AI Data Center Rail Kits Accelerate Penetration, Profit Sustainability Verified

Overview

This report is Goldman Sachs' management meeting notes and rating update for Taiwan-based King Slide (2059.TW). Analysts attended a Taipei management meeting on June 1, 2026, confirming the company's leadership and growth certainty in AI server rail kits, maintaining a 'Buy' rating with a 12-month target price of NT$4,386.

Core views

Goldman Sachs identifies King Slide's core competitiveness in three areas: first, its leadership in the AI server rail kit market, supported by a broad customer base and multi-chip architecture adaptability (covering GPU, ASIC, HGX, DGX, MGX, OCP, etc.), enabling deep customization and effective margin protection; second, the expansion of rail kit applications from traditional computing server cabinets to new AI data center scenarios like network cabinets, CPO switch cabinets, and power cabinets, continuously opening market space; third, the company's highly automated, scalable production capabilities and strong cost control, supporting stable profitability. Management emphasizes that while rail kits account for a small portion of AI server BOM costs, their critical role in equipment stability and operations leads end customers to prioritize high-quality products over low-cost solutions, providing pricing power and profit resilience.

Analysis framework

Goldman Sachs employs a three-tier analytical framework: 'industry trends—competitive barriers—financial validation.' First, it anchors on the core industry trend of rail kit demand expansion driven by the AI server boom; second, it delves into the company's technical barriers (patent portfolio), customer lock-in (early design involvement, interface habit formation), and manufacturing advantages (automation + economies of scale) that form its competitive moat; finally, it cross-validates sustainable growth through capacity utilization (currently 50%), expansion timing (U.S. factory in Q3 2026, Taiwan expansion in H2 2027), and profit models (high ROIC, rising CROCI). Valuation-wise, the report uses near-term P/E, anchoring the target price at 20x 2027 fiscal year EPS, derived from the profit leap potential driven by AI rail kit migration and historical peak PEG (0.8x).

Methodology notes

• Industry Analysis FrameworkSupply-demand framework

  Positions rail kits as critical functional components in AI data center infrastructure, deriving structural growth opportunities from downstream AI server demand surges

  This framework focuses on the alignment between genuine rigid demand and supply responsiveness—the report notes that while rail kits account for a low cost share, their irreplaceability in operations creates strong demand rigidity, supporting pricing power and profit stability

• Company Fundamentals & Financial FrameworkROIC–WACC spread

  Uses CROCI (cash return on capital invested) as a core financial metric, reaching 158.4% in 2025 and projected to rise to 302.1% by 2028, reflecting continuous capital efficiency optimization

  CROCI is a key indicator of true economic profit generation; high and rising CROCI shows returns on invested capital far exceed capital costs, quantifying moat and profit quality

• Valuation methodsPEG Valuation

  Target PE multiple (20x) is set based on the company's historical peak PEG (0.8x), balancing growth and valuation dynamics

  PEG = PE ÷ earnings growth rate, better reflecting growth premium rationality than PE alone; 0.8x PEG implies the market pays 0.8x PE for every 1% earnings growth, typical for high-growth companies, highlighting AI rail kit-driven profit leap expectations

Asset mapping & comparison

Structured mapping from thesis to named assets (strengths, weaknesses, peers, risks).

• King Slide (2059.TW)

  Core Beneficiary: Global leader in AI server rail kits, directly benefiting from accelerated AI data center construction

  Strengths

  Deep patent barriers, early involvement in mainstream AI architecture design, solidified customer interface habits, outstanding automated mass production capabilities

  Weaknesses

  High concentration in rail kits; potential pressure if AI server growth slows or alternatives emerge

  Comparison

  Compared to peers, it holds significant advantages in multi-architecture compatibility and customization response speed

  Risks

  Increased competition from new entrants, slower-than-expected AI server growth, lower-than-expected general server shipments

Key data

• 12-Month Target PriceNT$4,386Based on 20x PE valuation of 2027 fiscal year EPS
• Current Price (May 29, 2026 Close)NT$5,06513.4% downside to target price, reflecting short-term valuation partially pricing in expectations
• Capacity Utilization (April 2026)50%Ample capacity flexibility, reserving room for future expansion
• CROCI (Cash Return on Capital Invested)158.4% (2025) → 302.1% (2028E)Sustained sharp increase, validating business model efficiency and moat strength

Impact & implications

The report indicates King Slide's successful transition from a traditional server component supplier to a key AI data center infrastructure provider. Rising rail kit penetration is not just a revenue driver but a catalyst for profit leaps—forming a virtuous cycle of high margins, high turnover, and high capital efficiency. For the industry, this validates the value re-rating logic for non-core but high-stickiness components in AI hardware infrastructure, offering a replicable growth path for similar precision component manufacturers.

Risks

• Increased competition from new entrants
• Slower-than-expected AI server growth
• Lower-than-expected general server shipments

What to watch

• Progress of U.S. factory commencement in Q3 2026
• Order fulfillment for rail kits in new scenarios like CPO switch cabinets and power cabinets
• 2027 fiscal year EPS realization and its alignment with 20x PE valuation