Evobits Information Technology · Cluj‑Napoca, Romania · AS202779
We draw it.
We build it.
We run it.
Two datacenters designed and operated by our own engineers. 4,500+ GPUs in production. 400 Gbps of our own transport into Frankfurt. And a habit of giving part of it back. Scroll to walk the site.
Sheet 02 · Data hall · EvoDC-2 HyperAir
Built for efficiency.
Our flagship hall: six aisles of 50U racks in hot-aisle containment, cooled by six Vertiv EFC indirect evaporative units that blow from one wall, and fed by a fully 2N electrical path. Hot air leaves through an isolated ceiling plenum. A yearly PUE under 1.15, measured.
| IT power | 3 MW for active equipment |
|---|---|
| Racks | 260 × 50U · 6 aisles · 2 rows × 22 racks |
| Containment | hot aisle · isolated ceiling plenum |
| Cooling | N+2 · 6 × Vertiv EFC indirect evaporative, one wall |
| Power distribution | 2N · A + B · 3-phase busbars |
| UPS | 2N · Li-Ion · double-conversion, extreme efficiency |
| Generators | 2N |
| Transformers | 2N |
| Network | 2N · LACP everywhere |
| PUE | < 1.15 yearly average |
| Security | 24/7 CCTV · 24/7 physical security |
Sheet 03 · Data hall · EvoDC-1 ClassicAir
Built for flexibility.
The hall that started it, now upgraded: four aisles of 42U racks on a raised floor with cold-aisle containment, indoor cooling units at both ends of the hall, 2N evaporative chillers, 2N Li-Ion UPS and 2N generators. Single-phase A + B to every rack: the right fit for colocation from one rack up.
| IT power | 1.6 MW for active equipment |
|---|---|
| Racks | 120 × 42U · 4 aisles · 2 rows × 15 racks |
| Containment | cold aisle · raised floor |
| Cooling | 2N · evaporative chillers · indoor units at both ends |
| Power distribution | 2N · A + B · single-phase |
| UPS | 2N · Li-Ion · double-conversion |
| Generators | 2N |
| Network | 2N · LACP everywhere |
| PUE | < 1.25 yearly average (estimated) |
| Security | 24/7 CCTV · 24/7 physical security |
Sheet 04 · Electrical & mechanical
Two of everything.
No single point of failure.
From the medium-voltage transformers down to the rack PDU, every path exists twice: 2N transformers, 2N generators, 2N Li-Ion UPS with double-conversion efficiency, A + B distribution. Cooling is N+2 indirect evaporative in EvoDC-2 and 2N evaporative chillers in EvoDC-1. Watch the air: cold in from the wall, hot out through the ceiling.
Every 0.1 of PUE is 100 kW of fans and compressors per megawatt of servers. Indirect evaporative cooling uses outside air on a heat exchanger, never in the hall, so compressors stay idle most of the year in Cluj's climate. The industry figure is an external reference, not ours.
Sheet 05 · Network operations center · AS202779
21 ms to Frankfurt.
7 ms to Bucharest.
Two of every router.
Our own autonomous system, our own transport. The Cluj-Napoca PoP is the hub: 1.2 Tbps of DWDM capacity on multiple physical routes, and every other link leaves from there. 400 Gbps into Equinix FR5 Frankfurt, where we peer 300 Gbps with DE-CIX and 200 Gbps with Cloudflare. 200 Gbps into NXData-1 Bucharest, where we peer 200 Gbps with AWS. A 100 Gbps virtual PoP in New York, reached through DE-CIX. Multiple ISPs at every PoP. 2N BGP routers, 2N switches, LACP everywhere.
- Cluj-Napoca PoP · main hubDWDM · multiple physical routes · multiple ISPs1.2 Tbps
- Cluj-Napoca ⇄ FrankfurtEvobits PoP · Equinix FR5 · multiple routes400 Gbps21 ms
- Cluj-Napoca ⇄ BucharestEvobits PoP · NXData-1 · multiple routes200 Gbps7 ms
- Frankfurt ⇄ New Yorkvirtual PoP · via DE-CIX100 Gbps
- DE-CIXpublic peering · Frankfurt300 Gbps
- Cloudflareprivate peering · Frankfurt200 Gbps
- Amazon Web Servicesprivate peering · Bucharest200 Gbps
Sheet 06 · Compute layer
4,500 GPUs.
From RTX PRO 4000 to B300.
Over 1,500 AI servers, contracted to clients or ready to contract: from RTX PRO 4000 and RTX PRO 6000 Blackwell nodes up to NVIDIA B200 and B300 systems, already deployed. Beside them, 8,500+ AMD EPYC cores (Genoa and Turin) for CPU compute, 6+ PB of ultrafast pure-NVMe network storage and 4+ PB on Ceph.
| Entry · inference | RTX PRO 4000 Blackwell |
|---|---|
| Workstation-class · fine‑tuning | RTX PRO 6000 Blackwell |
| Frontier · training | NVIDIA B200 · NVIDIA B300 |
| CPU compute | AMD EPYC Genoa · Turin |
| Delivery | managed dedicated · virtual · local AI services |
Sheet 07 · Services index
From one managed server to a datacenter of your own.
Everything on this drawing is run by the same team you talk to. Seven services, one engineering culture. Open any line for its detail sheet.
- S-01Managed dedicated & virtual servers
Bare metal or VMs, sized for the workload and managed by the team that runs the hall.
- S-02Managed colocation
From a single rack to a private row. A + B power, 2N everything, hands on site 24/7.
- S-03Managed & local AI services
GPU capacity, inference and training clusters, run locally in Cluj-Napoca. Your data stays in the hall.
- S-04Hardware sales
Servers, GPUs, storage: sourced through direct partnerships and delivered across the EU.
- S-05Datacenter build consulting
We designed and built two halls. We help you design yours: power, cooling, containment, network.
- S-06Server hardware consulting
Right-sized bills of materials, CPU/GPU ratio, memory, NVMe, fabric, instead of pre-built SKUs.
- S-07AI implementation consulting
From model selection to deployment on hardware you own or rent from us.
Direct partnerships with AMD, Supermicro, MSI and ASRock, plus multiple partnerships with distributors on several continents. It means allocation on new silicon and engineering-level support, passed on to you.
Sheet 08 · Future works · EvoDC-Jucu · approvals phase
10 MW, two data rooms,
one of them liquid‑cooled.
EvoDC-Jucu is a completely new datacenter on a 1,500 m² footprint, 12 m high: a two-floor hall with one air-cooled room and one hybrid room that supports server liquid cooling for the densest GPU systems, a three-floor office and a two-floor warehouse at the front. Started, in the approvals phase. The lines are dashed because it is not built yet; they are drawn the same way the first two halls were.
EvoDC-Jucu 10 MW
| IT power | 10 MW |
|---|---|
| Footprint | 1,500 m² · 12 m high |
| Datacenter | 2 floors × 6 m |
| Data room 1 | air-cooled |
| Data room 2 | hybrid · server liquid cooling |
| Office | 15 × 15 m · 3 floors |
| Warehouse | 15 × 15 m · 2 floors × 6 m · loading docks |
| Status | started · approvals phase |
The next generation of GPU systems asks for direct-to-chip liquid cooling: heat leaves the server in water, not air, so a rack can carry several times the load of an air-cooled one. The hybrid room is built for both. The air-cooled room keeps everything else in the same building, on the same 2N power.
Reserve capacity in EvoDC-JucuSheet 09 · Future works · EvoPark-Cluj · approvals phase
80 MW over 3.9 hectares.
A park, not a hall.
EvoPark-Cluj is a datacenter and IT innovation park in Cluj-Napoca: its own high-voltage station, battery storage and solar generation, several datacenters from classic air-cooled to 800 V-DC liquid-cooled, and an office building for the people who will use them. Started, in the approvals phase. The drawing follows the current site layout and will change as the approvals progress.
EvoPark-Cluj 3.9 ha
- P-0180 MW high-voltage stationgrid connection for the whole park
- P-02Tens of MWh of battery storagegrid optimisation
- P-03Solar panel parklocal power generation
- P-04Multiple datacentersfrom classic air-cooled to 800 V-DC liquid-cooled
- P-05Office buildingIT startups, non-profit organisations, events
| Office B | 40 × 40 m · startups, non-profits, events |
|---|---|
| DC S1 | 50 × 30 m · 20 m gaps |
| T-building | 85 × 50 m · DC A air-cooled · office 4 floors · warehouse 3 docks · DC B hybrid, 800 V-DC liquid-cooled |
| Service zone | 90 m · 80 MW HV station · battery storage · solar |
| DC S2 · S3 · S4 | 60 × 30 m each · 30 m gaps · rooftop cooling and solar |
| Access | gate and roundabout west · access road 442 m along the east boundary |
Sheet 10 · Pay it forward
We build infrastructure for a living.
This is the infrastructure that matters most.
Evobits was founded in Reșița by Silviu Cătălin Balaci, and we have never forgotten where we started, or the city we grew up in as a company. Two communities, two long-term commitments. The route on the drawing is the caravan's: every Saturday, from Reșița to the villages.
For Life, Reșița
An educational community born in Reșița and led by mathematics professor Ovidiu Bădescu. What began as a small pandemic-era initiative is now a nationwide movement of volunteer teachers and students, built on one idea: every child deserves quality education, wherever they live and whatever their family can afford.
- 2023A 3D printing club
Our donation of 3D printers made possible the first 3D Design & Printing Club at Colegiul Național „Traian Lalescu” Reșița. Close to forty students signed up for the first session. It has been running ever since.
- 2025A minibus for Caravana For Life
Every Saturday, high-school volunteers and Professor Bădescu drive to village schools with workshops in logical and mathematical thinking, writing, financial education, robotics, English and personal development. Evobits donated the minibus, so the caravan reaches Răcășdia, Pojejena, Naidăș, and beyond the county line. The same bus now drives Content cu Busola, a student project mapping the landmarks of Banatul Montan.
- OngoingScholarships
Evobits is the main financial supporter of the For Life scholarship programme, which rewards learning, progress and involvement, and gives direct help to students in difficult situations, from commuting costs to the tools they need to keep learning.
Founders Hive, Cluj-Napoca
Since 2025, Evobits has been the founding partner of Founders Hive, the home of Cluj Startups and the Transylvania Angels Network. We provide more than 250 m² of office space in our headquarters at Strada 13 Septembrie 12A, free of charge: a permanent place for the region's founders to work, meet investors and mentors, and launch their companies.
- Oct 2025Launch week
A five-day NON-Hackathon and a Meet Your Co-Founder session, both fully booked before the doors opened.
- Apr 2026CASSINI Hackathon
Founders Hive was the Cluj-Napoca venue of the European Commission's 11th CASSINI Hackathon, one of four sites in Romania.
A datacenter operator hosting the city's founder community inside its own building: early-stage teams sit next to the infrastructure many of them will eventually need.
foundershive.space ↗
Sheet 11 · Title block · Contact
Talk to an engineer.
Colocation, GPU capacity, managed servers, hardware, or a datacenter of your own: write to us and an engineer answers. Visits to the halls by appointment.
- HEADQUARTERS
- Strada 13 Septembrie 12A, 400126 Cluj‑Napoca, Romania
- NETWORK
- AS202779 · PoPs in Cluj‑Napoca (hub, 1.2 Tbps DWDM), Frankfurt (Equinix FR5), Bucharest (NXData-1) · virtual PoP in New York
- OPERATIONS
- NOC 24/7 · datacenter visits by appointment